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Let’s check out your problem:
Find the product. Simplify your answer.
\newline
(
k
−
4
)
(
k
+
1
)
(k - 4)(k + 1)
(
k
−
4
)
(
k
+
1
)
View step-by-step help
Home
Math Problems
Algebra 1
Multiply two binomials
Full solution
Q.
Find the product. Simplify your answer.
\newline
(
k
−
4
)
(
k
+
1
)
(k - 4)(k + 1)
(
k
−
4
)
(
k
+
1
)
Apply Distributive Property:
Apply the
distributive property
to multiply the two binomials
(
k
−
4
)
(k - 4)
(
k
−
4
)
and
(
k
+
1
)
(k + 1)
(
k
+
1
)
.
(
k
−
4
)
(
k
+
1
)
=
k
(
k
+
1
)
−
4
(
k
+
1
)
(k - 4)(k + 1) = k(k + 1) - 4(k + 1)
(
k
−
4
)
(
k
+
1
)
=
k
(
k
+
1
)
−
4
(
k
+
1
)
Multiply Binomials:
Multiply
k
k
k
by each term in the binomial
(
k
+
1
)
(k + 1)
(
k
+
1
)
.
k
(
k
+
1
)
=
k
⋅
k
+
k
⋅
1
=
k
2
+
k
k(k + 1) = k\cdot k + k\cdot 1 = k^2 + k
k
(
k
+
1
)
=
k
⋅
k
+
k
⋅
1
=
k
2
+
k
Combine Terms:
Multiply
−
4
-4
−
4
by each term in the binomial
(
k
+
1
)
(k + 1)
(
k
+
1
)
.
−
4
(
k
+
1
)
=
−
4
⋅
k
−
4
⋅
1
=
−
4
k
−
4
-4(k + 1) = -4\cdot k - 4\cdot 1 = -4k - 4
−
4
(
k
+
1
)
=
−
4
⋅
k
−
4
⋅
1
=
−
4
k
−
4
Combine Like Terms:
Combine the results from Step
2
2
2
and Step
3
3
3
.
\newline
(
k
−
4
)
(
k
+
1
)
=
k
2
+
k
−
4
k
−
4
(k - 4)(k + 1) = k^2 + k - 4k - 4
(
k
−
4
)
(
k
+
1
)
=
k
2
+
k
−
4
k
−
4
Combine Like Terms:
Combine the results from Step
2
2
2
and Step
3
3
3
.
\newline
(
k
−
4
)
(
k
+
1
)
=
k
2
+
k
−
4
k
−
4
(k - 4)(k + 1) = k^2 + k - 4k - 4
(
k
−
4
)
(
k
+
1
)
=
k
2
+
k
−
4
k
−
4
Combine like terms.
\newline
k
2
+
k
−
4
k
−
4
=
k
2
−
3
k
−
4
k^2 + k - 4k - 4 = k^2 - 3k - 4
k
2
+
k
−
4
k
−
4
=
k
2
−
3
k
−
4
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\newline
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\newline
(
24
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(
x
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=
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6
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q
(
x
)
=
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6
−
9
even, odd, or neither?
\newline
Choices:
\newline
[[even][odd][neither]]
\text{[[even][odd][neither]]}
[[even][odd][neither]]
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\newline
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\newline
(
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+
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)
(
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)
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(
r
+
3
)
(
4
r
+
2
)
\newline
______
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Question
Find the roots of the factored polynomial.
\newline
(
x
+
7
)
(
x
+
4
)
(x + 7)(x + 4)
(
x
+
7
)
(
x
+
4
)
\newline
Write your answer as a list of values separated by commas.
\newline
x
=
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=
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