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Math Problems
Grade 7
Identify equivalent linear expressions I
Which expression is equivalent to
4
(
2
h
)
4(2h)
4
(
2
h
)
?
\newline
Choices:
\newline
(A)
h
+
6
h + 6
h
+
6
\newline
(B)
8
h
8h
8
h
\newline
(C)
2
h
+
4
2h + 4
2
h
+
4
\newline
(D)
h
+
8
h + 8
h
+
8
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Which expression is equivalent to the expression below?
\newline
5
(
6
x
)
+
7
x
5(6 x)+7 x
5
(
6
x
)
+
7
x
\newline
18
x
18 x
18
x
\newline
13
x
+
5
13 x+5
13
x
+
5
\newline
30
x
+
6
x
2
30 x+6 x^{2}
30
x
+
6
x
2
\newline
37
x
37 x
37
x
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Which expression is equivalent to the expression below?
\newline
3
(
8
s
+
8
t
)
+
5
s
3(8 s+8 t)+5 s
3
(
8
s
+
8
t
)
+
5
s
\newline
6
s
+
11
t
6 s+11 t
6
s
+
11
t
\newline
29
s
+
24
t
29 s+24 t
29
s
+
24
t
\newline
3
(
8
s
+
8
t
+
5
s
)
3(8 s+8 t+5 s)
3
(
8
s
+
8
t
+
5
s
)
\newline
19
s
+
8
t
19 s+8 t
19
s
+
8
t
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Which expression is equivalent to the expression below?
\newline
3
(
2
x
+
3
)
−
3
x
3(2 x+3)-3 x
3
(
2
x
+
3
)
−
3
x
\newline
3
(
2
x
+
3
−
3
x
)
3(2 x+3-3 x)
3
(
2
x
+
3
−
3
x
)
\newline
3
x
+
9
3 x+9
3
x
+
9
\newline
8
x
+
6
8 x+6
8
x
+
6
\newline
9
x
+
3
9 x+3
9
x
+
3
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Which expression is equivalent to
2
−
10
2-10
2
−
10
?
\newline
−
2
+
(
−
10
)
-2+(-10)
−
2
+
(
−
10
)
\newline
2
+
(
−
10
)
2+(-10)
2
+
(
−
10
)
\newline
2
−
(
−
10
)
2-(-10)
2
−
(
−
10
)
\newline
−
10
−
2
-10-2
−
10
−
2
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Which expression is equivalent to
−
8.2
−
5
-8.2-5
−
8.2
−
5
?
\newline
Choose
1
1
1
answer:
\newline
(A)
8.2
−
5
8.2-5
8.2
−
5
\newline
(B)
−
8.2
+
(
−
5
)
-8.2+(-5)
−
8.2
+
(
−
5
)
\newline
(C)
−
8.2
+
5
-8.2+5
−
8.2
+
5
\newline
(D)
5
−
(
−
8.2
)
5-(-8.2)
5
−
(
−
8.2
)
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Which expression is equivalent to
−
6
−
(
−
2
)
?
-6-(-2) ?
−
6
−
(
−
2
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
+
6
2+6
2
+
6
\newline
(B)
−
2
+
6
-2+6
−
2
+
6
\newline
(C)
−
6
+
2
-6+2
−
6
+
2
\newline
(D)
−
6
+
(
−
2
)
-6+(-2)
−
6
+
(
−
2
)
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Which expression is equivalent to
11
−
(
−
3
5
8
)
11-\left(-3 \frac{5}{8}\right)
11
−
(
−
3
8
5
)
?
\newline
Choose
1
1
1
answer:
\newline
(A)
11
+
3
5
8
11+3 \frac{5}{8}
11
+
3
8
5
\newline
(B)
3
5
8
+
(
−
11
)
3 \frac{5}{8}+(-11)
3
8
5
+
(
−
11
)
\newline
(C)
11
+
(
−
3
5
8
)
11+\left(-3 \frac{5}{8}\right)
11
+
(
−
3
8
5
)
\newline
(D)
−
3
5
8
−
11
-3 \frac{5}{8}-11
−
3
8
5
−
11
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Which expression is equivalent to
10
−
8
10-8
10
−
8
?
\newline
Choose
1
1
1
answer:
\newline
(A)
8
−
10
8-10
8
−
10
\newline
(B)
10
−
(
−
8
)
10-(-8)
10
−
(
−
8
)
\newline
(C)
10
+
(
−
8
)
10+(-8)
10
+
(
−
8
)
\newline
(D)
−
8
−
10
-8-10
−
8
−
10
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Which expression is equivalent to
3
7
8
−
6
1
4
?
3 \frac{7}{8}-6 \frac{1}{4} ?
3
8
7
−
6
4
1
?
\newline
Choose
1
1
1
answer:
\newline
(A)
3
7
8
+
(
−
6
1
4
)
3 \frac{7}{8}+\left(-6 \frac{1}{4}\right)
3
8
7
+
(
−
6
4
1
)
\newline
(B)
3
7
8
+
(
6
1
4
)
3 \frac{7}{8}+\left(6 \frac{1}{4}\right)
3
8
7
+
(
6
4
1
)
\newline
(C)
6
1
4
−
(
3
7
8
)
6 \frac{1}{4}-\left(3 \frac{7}{8}\right)
6
4
1
−
(
3
8
7
)
\newline
(D)
−
6
1
4
+
(
−
3
7
8
)
-6 \frac{1}{4}+\left(-3 \frac{7}{8}\right)
−
6
4
1
+
(
−
3
8
7
)
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Which expression is equivalent to
2
−
35
2-35
2
−
35
?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
35
−
2
-35-2
−
35
−
2
\newline
(B)
35
−
2
35-2
35
−
2
\newline
(C)
2
−
(
−
35
)
2-(-35)
2
−
(
−
35
)
\newline
(D)
2
+
(
−
35
)
2+(-35)
2
+
(
−
35
)
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Which expression is equivalent to
4.25
−
(
−
8
)
?
4.25-(-8) ?
4.25
−
(
−
8
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
8
+
(
−
4.25
)
-8+(-4.25)
−
8
+
(
−
4.25
)
\newline
(B)
4.25
+
(
−
8
)
4.25+(-8)
4.25
+
(
−
8
)
\newline
(C)
4.25
+
8
4.25+8
4.25
+
8
\newline
(D)
8
−
4.25
8-4.25
8
−
4.25
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Which expression is equivalent to
7
3
4
−
1
2
7 \frac{3}{4}-\frac{1}{2}
7
4
3
−
2
1
?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
7
3
4
+
(
−
1
2
)
-7 \frac{3}{4}+\left(-\frac{1}{2}\right)
−
7
4
3
+
(
−
2
1
)
\newline
(B)
7
3
4
+
(
−
1
2
)
7 \frac{3}{4}+\left(-\frac{1}{2}\right)
7
4
3
+
(
−
2
1
)
\newline
(C)
1
2
+
(
−
7
3
4
)
\frac{1}{2}+\left(-7 \frac{3}{4}\right)
2
1
+
(
−
7
4
3
)
\newline
(D)
1
2
+
7
3
4
\frac{1}{2}+7 \frac{3}{4}
2
1
+
7
4
3
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Which expression is equivalent to
−
36
−
8
-36-8
−
36
−
8
?
\newline
Choose
1
1
1
answer:
\newline
(A)
36
+
8
36+8
36
+
8
\newline
(B)
−
8
+
36
-8+36
−
8
+
36
\newline
(C)
8
−
36
8-36
8
−
36
\newline
(D)
−
36
+
(
−
8
)
-36+(-8)
−
36
+
(
−
8
)
Get tutor help
Which expression is equivalent to
−
9
−
(
−
4
1
3
)
-9-\left(-4 \frac{1}{3}\right)
−
9
−
(
−
4
3
1
)
?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
9
+
4
1
3
-9+4 \frac{1}{3}
−
9
+
4
3
1
\newline
(B)
−
4
1
3
−
(
−
9
)
-4 \frac{1}{3}-(-9)
−
4
3
1
−
(
−
9
)
\newline
(C)
−
4
1
3
+
(
−
9
)
-4 \frac{1}{3}+(-9)
−
4
3
1
+
(
−
9
)
\newline
(D)
9
−
(
−
4
1
3
)
9-\left(-4 \frac{1}{3}\right)
9
−
(
−
4
3
1
)
Get tutor help
Which expression is equivalent to
−
0.2
−
4.9
?
-0.2-4.9 ?
−
0.2
−
4.9
?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
0.2
+
(
−
4.9
)
-0.2+(-4.9)
−
0.2
+
(
−
4.9
)
\newline
(B)
−
0.2
+
4.9
-0.2+4.9
−
0.2
+
4.9
\newline
(C)
0.2
−
(
−
4.9
)
0.2-(-4.9)
0.2
−
(
−
4.9
)
\newline
(D)
−
4.9
+
0.2
-4.9+0.2
−
4.9
+
0.2
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Which expression is equivalent to
−
1.3
−
(
−
1.9
)
?
-1.3-(-1.9) ?
−
1.3
−
(
−
1.9
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
1.9
+
1.3
-1.9+1.3
−
1.9
+
1.3
\newline
(B)
−
1.3
+
(
−
1.9
)
-1.3+(-1.9)
−
1.3
+
(
−
1.9
)
\newline
(C)
−
1.3
+
1.9
-1.3+1.9
−
1.3
+
1.9
\newline
(D)
1.3
+
1.9
1.3+1.9
1.3
+
1.9
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Which expression is equivalent to
−
3
1
8
−
2
1
2
-3 \frac{1}{8}-2 \frac{1}{2}
−
3
8
1
−
2
2
1
?
\newline
Choose
1
1
1
answer:
\newline
(A)
3
1
8
−
2
1
2
3 \frac{1}{8}-2 \frac{1}{2}
3
8
1
−
2
2
1
\newline
(B)
2
1
2
−
3
1
8
2 \frac{1}{2}-3 \frac{1}{8}
2
2
1
−
3
8
1
\newline
(C)
2
1
2
−
(
−
3
1
8
)
2 \frac{1}{2}-\left(-3 \frac{1}{8}\right)
2
2
1
−
(
−
3
8
1
)
\newline
(D)
−
3
1
8
+
(
−
2
1
2
)
-3 \frac{1}{8}+\left(-2 \frac{1}{2}\right)
−
3
8
1
+
(
−
2
2
1
)
Get tutor help
Which expression is equivalent to
1
2
−
(
−
8
)
?
\frac{1}{2}-(-8) ?
2
1
−
(
−
8
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
1
2
+
8
\frac{1}{2}+8
2
1
+
8
\newline
(B)
−
1
2
+
8
-\frac{1}{2}+8
−
2
1
+
8
\newline
(C)
−
1
2
−
8
-\frac{1}{2}-8
−
2
1
−
8
\newline
(D)
−
8
+
1
2
-8+\frac{1}{2}
−
8
+
2
1
Get tutor help
Which expression is equivalent to
16.8
−
18.6
?
16.8-18.6 ?
16.8
−
18.6
?
\newline
Choose
1
1
1
answer:
\newline
(A)
18.6
−
16.8
18.6-16.8
18.6
−
16.8
\newline
(B)
−
18.6
+
(
−
16.8
)
-18.6+(-16.8)
−
18.6
+
(
−
16.8
)
\newline
(C)
16.8
−
(
−
18.6
)
16.8-(-18.6)
16.8
−
(
−
18.6
)
\newline
(D)
16.8
+
(
−
18.6
)
16.8+(-18.6)
16.8
+
(
−
18.6
)
Get tutor help
Which expression is equivalent to
13
−
(
−
21
)
?
13-(-21) ?
13
−
(
−
21
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
13
+
21
13+21
13
+
21
\newline
(B)
−
13
+
21
-13+21
−
13
+
21
\newline
(C)
−
21
−
13
-21-13
−
21
−
13
\newline
(D)
−
21
+
13
-21+13
−
21
+
13
Get tutor help
Which expression is equivalent to
−
7
−
(
−
2.5
)
?
-7-(-2.5) ?
−
7
−
(
−
2.5
)?
\newline
Choose
1
1
1
answer:
\newline
(A)
2.5
+
7
2.5+7
2.5
+
7
\newline
(B)
−
7
+
2.5
-7+2.5
−
7
+
2.5
\newline
(C)
7
+
(
−
2.5
)
7+(-2.5)
7
+
(
−
2.5
)
\newline
(D)
−
2.5
−
7
-2.5-7
−
2.5
−
7
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Which decimal is equivalent to
76
9
\frac{76}{9}
9
76
?
\newline
Choose
1
1
1
answer:
\newline
(A)
8
8
8
.
3
3
3
\newline
(B)
8.
3
‾
8 . \overline{3}
8.
3
\newline
(C)
8.
4
‾
8 . \overline{4}
8.
4
\newline
(D)
8
8
8
.
4445
4445
4445
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lim
x
→
2
3
−
5
x
−
1
x
−
2
=
\lim _{x \rightarrow 2} \frac{3-\sqrt{5 x-1}}{x-2}=
lim
x
→
2
x
−
2
3
−
5
x
−
1
=
Get tutor help
lim
x
→
−
2
3
x
+
10
−
2
x
+
2
=
\lim _{x \rightarrow-2} \frac{\sqrt{3 x+10}-2}{x+2}=
lim
x
→
−
2
x
+
2
3
x
+
10
−
2
=
Get tutor help
lim
x
→
−
1
5
−
3
x
+
28
x
+
1
=
\lim _{x \rightarrow-1} \frac{5-\sqrt{3 x+28}}{x+1}=
lim
x
→
−
1
x
+
1
5
−
3
x
+
28
=
Get tutor help
Solve for
x
x
x
.
\newline
3
x
−
2
3
x
+
1
=
3
x
=
\begin{array}{l} \frac{3 x-2}{3 x+1}=3 \\ x= \end{array}
3
x
+
1
3
x
−
2
=
3
x
=
Get tutor help
Which expressions are equivalent to
(
x
4
)
−
1
(\sqrt[4]{x})^{-1}
(
4
x
)
−
1
?
\newline
Choose all answers that apply:
\newline
A
x
−
4
x^{-4}
x
−
4
\newline
B
(
x
)
−
4
(\sqrt{x})^{-4}
(
x
)
−
4
\newline
c
−
x
4
-\sqrt[4]{x}
−
4
x
\newline
D None of the above
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Which expressions are equivalent to
v
3
7
\sqrt[7]{v^{3}}
7
v
3
?
\newline
Choose all answers that apply:
\newline
A
(
v
3
)
1
7
\left(v^{3}\right)^{\frac{1}{7}}
(
v
3
)
7
1
\newline
B
(
v
3
)
7
(\sqrt[3]{v})^{7}
(
3
v
)
7
\newline
C.
v
3
7
v^{\frac{3}{7}}
v
7
3
\newline
D None of the above
Get tutor help
Which exponential expression is equivalent to
x
3
4
\sqrt[4]{x^{3}}
4
x
3
?
\newline
Choose
1
1
1
answer:
\newline
(A)
x
3
x
4
\frac{x^{3}}{x^{4}}
x
4
x
3
\newline
(B)
x
4
3
x^{\frac{4}{3}}
x
3
4
\newline
(C)
x
3
4
x^{\frac{3}{4}}
x
4
3
\newline
(D)
x
4
x
3
\frac{x^{4}}{x^{3}}
x
3
x
4
Get tutor help
Which exponential expression is equivalent to
(
t
3
)
2
(\sqrt[3]{t})^{2}
(
3
t
)
2
?
\newline
Choose
1
1
1
answer:
\newline
(A)
t
3
t
2
\frac{t^{3}}{t^{2}}
t
2
t
3
\newline
(B)
t
2
t
3
\frac{t^{2}}{t^{3}}
t
3
t
2
\newline
(C)
t
3
2
t^{\frac{3}{2}}
t
2
3
\newline
(D)
t
2
3
t^{\frac{2}{3}}
t
3
2
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Which expressions are equivalent to
(
k
1
8
)
−
1
\left(k^{\frac{1}{8}}\right)^{-1}
(
k
8
1
)
−
1
?
\newline
Choose all answers that apply:
\newline
A
(
k
−
1
)
1
8
\left(k^{-1}\right)^{\frac{1}{8}}
(
k
−
1
)
8
1
\newline
B
(
k
8
)
−
1
(\sqrt[8]{k})^{-1}
(
8
k
)
−
1
\newline
C
k
−
1
8
k^{-\frac{1}{8}}
k
−
8
1
\newline
D None of the above
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Which expressions are equivalent to
b
9
5
\sqrt[5]{b^{9}}
5
b
9
?
\newline
Choose all answers that apply:
\newline
A
b
9
5
b^{\frac{9}{5}}
b
5
9
\newline
B
b
5
9
b^{\frac{5}{9}}
b
9
5
\newline
C
(
b
5
)
1
9
\left(b^{5}\right)^{\frac{1}{9}}
(
b
5
)
9
1
\newline
D None of the above
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What is the midline equation of
\newline
y
=
10
cos
(
6
x
−
1
)
−
4
?
y
=
□
\begin{array}{l} y=10 \cos (6 x-1)-4 ? \\ y=\square \end{array}
y
=
10
cos
(
6
x
−
1
)
−
4
?
y
=
□
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Which of the following is equivalent to
18
18
18
more than the product of
9
−
6
p
9-6 p
9
−
6
p
and
p
−
2
p-2
p
−
2
?
\newline
Choose
1
1
1
answer:
\newline
(A)
3
(
7
p
+
6
)
3(7 p+6)
3
(
7
p
+
6
)
\newline
(B)
−
3
p
(
2
p
−
7
)
-3 p(2 p-7)
−
3
p
(
2
p
−
7
)
\newline
(C)
(
27
−
6
p
)
(
p
−
2
)
(27-6 p)(p-2)
(
27
−
6
p
)
(
p
−
2
)
\newline
(D)
(
9
−
6
p
)
(
p
+
16
)
(9-6 p)(p+16)
(
9
−
6
p
)
(
p
+
16
)
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Which of the following is equivalent to the product of
2
3
z
−
1
2
\frac{2}{3} z-\frac{1}{2}
3
2
z
−
2
1
and
6
z
+
12
6 z+12
6
z
+
12
?
\newline
Choose
1
1
1
answer:
\newline
(A)
20
3
z
+
23
3
\frac{20}{3} z+\frac{23}{3}
3
20
z
+
3
23
\newline
(B)
9
z
−
6
9 z-6
9
z
−
6
\newline
(C)
4
z
2
−
6
4 z^{2}-6
4
z
2
−
6
\newline
(D)
4
z
2
+
5
z
−
6
4 z^{2}+5 z-6
4
z
2
+
5
z
−
6
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Which of the following expressions is equivalent to
\newline
(
x
2
−
2
x
+
1
)
+
(
x
2
+
2
x
+
1
)
\left(x^{2}-2 x+1\right)+\left(x^{2}+2 x+1\right)
(
x
2
−
2
x
+
1
)
+
(
x
2
+
2
x
+
1
)
\newline
?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
x
2 x
2
x
\newline
(B)
−
2
x
-2 x
−
2
x
\newline
(C)
2
x
2
+
2
2 x^{2}+2
2
x
2
+
2
\newline
(D)
2
x
2
2 x^{2}
2
x
2
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Which of the following is equivalent to
2
x
2
+
4
x
+
3
2 x^{2}+4 x+3
2
x
2
+
4
x
+
3
?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
(
x
+
1
)
2
+
1
2(x+1)^{2}+1
2
(
x
+
1
)
2
+
1
\newline
(B)
2
(
x
+
1
)
2
+
3
2(x+1)^{2}+3
2
(
x
+
1
)
2
+
3
\newline
(C)
2
(
x
+
1
)
2
+
5
2(x+1)^{2}+5
2
(
x
+
1
)
2
+
5
\newline
(D)
2
(
x
+
1
)
2
+
4
x
+
1
2(x+1)^{2}+4 x+1
2
(
x
+
1
)
2
+
4
x
+
1
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75
x
4
12
x
7
\frac{\sqrt{75 x^{4}}}{\sqrt{12 x^{7}}}
12
x
7
75
x
4
\newline
Which of the following expressions is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
5
x
3
x
6
\frac{5 x \sqrt{3 x}}{6}
6
5
x
3
x
\newline
(B)
5
3
x
6
x
2
\frac{5 \sqrt{3 x}}{6 x^{2}}
6
x
2
5
3
x
\newline
(C)
5
2
x
\frac{5}{2 \sqrt{x}}
2
x
5
\newline
(D)
5
x
2
x
2
\frac{5 \sqrt{x}}{2 x^{2}}
2
x
2
5
x
Get tutor help
Which of the following expressions is equivalent to
6
640
f
2
g
9
3
6 \sqrt[3]{640 f^{2} g^{9}}
6
3
640
f
2
g
9
?
\newline
Choose
1
1
1
answer:
\newline
(A)
60
f
g
4
8
g
3
60 f g^{4} \sqrt[3]{8 g}
60
f
g
4
3
8
g
\newline
(B)
60
g
3
4
f
2
3
60 g^{3} \sqrt[3]{4 f^{2}}
60
g
3
3
4
f
2
\newline
(C)
48
f
g
4
10
g
3
48 f g^{4} \sqrt[3]{10 g}
48
f
g
4
3
10
g
\newline
(D)
24
g
3
10
f
2
3
24 g^{3} \sqrt[3]{10 f^{2}}
24
g
3
3
10
f
2
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8
1
2
2
1
3
\frac{8^{\frac{1}{2}}}{2^{\frac{1}{3}}}
2
3
1
8
2
1
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
2
7
6
2^{\frac{7}{6}}
2
6
7
\newline
(B)
2
9
2
2^{\frac{9}{2}}
2
2
9
\newline
(C)
4
1
6
4^{\frac{1}{6}}
4
6
1
\newline
(D)
4
3
2
4^{\frac{3}{2}}
4
2
3
Get tutor help
2
−
4
(
5
p
+
1
)
2-4(5 p+1)
2
−
4
(
5
p
+
1
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
20
p
−
2
-20 p-2
−
20
p
−
2
\newline
(B)
−
5
p
−
4
-5 p-4
−
5
p
−
4
\newline
(C)
−
20
p
+
2
-20 p+2
−
20
p
+
2
\newline
(D)
−
5
p
+
4
-5 p+4
−
5
p
+
4
Get tutor help
−
y
−
3
(
−
3
y
+
5
)
-y-3(-3 y+5)
−
y
−
3
(
−
3
y
+
5
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
8
y
−
15
-8 y-15
−
8
y
−
15
\newline
(B)
8
y
+
5
8 y+5
8
y
+
5
\newline
(C)
−
8
y
−
5
-8 y-5
−
8
y
−
5
\newline
(D)
8
y
−
15
8 y-15
8
y
−
15
Get tutor help
2
(
3
r
+
7
)
−
(
2
+
r
)
2(3 r+7)-(2+r)
2
(
3
r
+
7
)
−
(
2
+
r
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
4
r
+
12
4 r+12
4
r
+
12
\newline
(B)
5
r
+
13
5 r+13
5
r
+
13
\newline
(C)
5
r
+
12
5 r+12
5
r
+
12
\newline
(D)
5
r
−
12
5 r-12
5
r
−
12
Get tutor help
5
+
7
(
8
r
−
2
)
5+7(8 r-2)
5
+
7
(
8
r
−
2
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
56
r
+
3
56 r+3
56
r
+
3
\newline
(B)
56
r
+
9
56 r+9
56
r
+
9
\newline
(C)
8
r
−
9
8 r-9
8
r
−
9
\newline
(D)
56
r
−
9
56 r-9
56
r
−
9
Get tutor help
3
n
+
2
(
−
2
n
−
1
)
3 n+2(-2 n-1)
3
n
+
2
(
−
2
n
−
1
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
n
+
2
-n+2
−
n
+
2
\newline
(B)
n
+
2
n+2
n
+
2
\newline
(C)
−
n
−
2
-n-2
−
n
−
2
\newline
(D)
n
−
2
n-2
n
−
2
Get tutor help
7
n
−
(
4
n
−
3
)
7 n-(4 n-3)
7
n
−
(
4
n
−
3
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
3
n
+
3
3 n+3
3
n
+
3
\newline
(B)
3
n
−
3
3 n-3
3
n
−
3
\newline
(C)
11
n
+
3
11 n+3
11
n
+
3
\newline
(D)
11
n
−
3
11 n-3
11
n
−
3
Get tutor help
19
−
6
(
−
k
−
2
)
19-6(-k-2)
19
−
6
(
−
k
−
2
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
−
6
k
+
31
-6 k+31
−
6
k
+
31
\newline
(B)
25
k
+
7
25 k+7
25
k
+
7
\newline
(C)
6
k
+
31
6 k+31
6
k
+
31
\newline
(D)
25
k
+
31
25 k+31
25
k
+
31
Get tutor help
(
x
−
9
)
(
x
−
6
)
(x-9)(x-6)
(
x
−
9
)
(
x
−
6
)
\newline
Which of the following is equivalent to the given expression?
\newline
Choose
1
1
1
answer:
\newline
(A)
x
2
+
3
x
−
15
x^{2}+3 x-15
x
2
+
3
x
−
15
\newline
(B)
x
2
−
15
x
−
15
x^{2}-15 x-15
x
2
−
15
x
−
15
\newline
(C)
2
x
2
−
3
x
+
54
2 x^{2}-3 x+54
2
x
2
−
3
x
+
54
\newline
(D)
x
2
−
15
x
+
54
x^{2}-15 x+54
x
2
−
15
x
+
54
Get tutor help
Which of the following expressions is equivalent to:
\newline
(
4
x
3
−
5
x
)
+
(
8
x
−
3
x
3
)
?
\left(4 x^{3}-5 x\right)+\left(8 x-3 x^{3}\right) ?
(
4
x
3
−
5
x
)
+
(
8
x
−
3
x
3
)
?
\newline
Choose
1
1
1
answer:
\newline
(A)
x
3
+
3
x
x^{3}+3 x
x
3
+
3
x
\newline
(B)
x
3
−
3
x
x^{3}-3 x
x
3
−
3
x
\newline
(C)
7
x
3
−
3
x
7 x^{3}-3 x
7
x
3
−
3
x
\newline
(D)
7
x
3
+
3
x
7 x^{3}+3 x
7
x
3
+
3
x
Get tutor help
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