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Let’s check out your problem:
Combine like terms.
\newline
−
7
x
2
−
5
−
y
−
x
2
+
3
y
+
2
+
5
-7 x^{2}-5-y-x^{2}+3 y+2+5
−
7
x
2
−
5
−
y
−
x
2
+
3
y
+
2
+
5
\newline
Answer:
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Math Problems
Calculus
Find derivatives of using multiple formulae
Full solution
Q.
Combine like terms.
\newline
−
7
x
2
−
5
−
y
−
x
2
+
3
y
+
2
+
5
-7 x^{2}-5-y-x^{2}+3 y+2+5
−
7
x
2
−
5
−
y
−
x
2
+
3
y
+
2
+
5
\newline
Answer:
Combine
x
2
x^2
x
2
coefficients:
Combine the like terms that are the coefficients of
x
2
x^2
x
2
.
\newline
−
7
x
2
-7x^2
−
7
x
2
and
−
x
2
-x^2
−
x
2
are like terms.
\newline
−
7
x
2
−
x
2
=
−
8
x
2
-7x^2 - x^2 = -8x^2
−
7
x
2
−
x
2
=
−
8
x
2
Combine y coefficients:
Combine the like terms that are the coefficients of y.
−
5
y
-5y
−
5
y
and
3
y
3y
3
y
are like terms.
−
5
y
+
3
y
=
−
2
y
-5y + 3y = -2y
−
5
y
+
3
y
=
−
2
y
Combine constant terms:
Combine the constant terms.
2
2
2
and
5
5
5
are constants.
2
+
5
=
7
2 + 5 = 7
2
+
5
=
7
Combine all like terms:
Combine all the like terms we have found to get the final simplified expression.
\newline
−
8
x
2
−
2
y
+
7
-8x^2 - 2y + 7
−
8
x
2
−
2
y
+
7
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