Add or subtract.
-$\left( - 5 m n + 3 m n ^ { 2 } - 3 m ^ { 2 } n ^ { 2 } \right) + \left( 5 m ^ { 2 } n + 6 m ^ { 2 } n ^ { 2 } - 6 m n \right)$
A) $- 11 m n + 8 m ^ { 2 } n + 3 m ^ { 2 } n ^ { 2 }$
B) $1 m n + 3 m n ^ { 2 } + 5 m ^ { 2 } n + 3 m ^ { 2 } n ^ { 2 }$
C) $3 m ^ { 2 } n ^ { 2 } + 5 m ^ { 2 } n + 3 m n ^ { 2 } - 11 m n$
D) $0 m ^ { 2 } n ^ { 2 }$

Question

Quizplus · Accepted Answer

Group like terms together and add:
\begin{align*}
&\left(-5mn+3mn^2-3m^2n^2ight)+\left(5m^2n+6m^2n^2-6mnight)\
=&-5mn+5m^2n+3mn^2+6m^2n^2-3m^2n^2-6mn\
=&-11mn+5m^2n+3mn^2+3m^2n^2\
=&\boxed{3m^2n^2+5m^2n+3mn^2-11mn}
\end{align*}

Add or Subtract (−5mn+3mn2−3m2n2)+(5m2n+6m2n2−6mn)\left( - 5 m n + 3 m n ^ { 2 } - 3 m ^ { 2 } n ^ { 2 } \right) + \left( 5 m ^ { 2 } n + 6 m ^ { 2 } n ^ { 2 } - 6 m n \right)(−5mn+3mn2−3m2n2)+(5m2n+6m2n2−6mn)

Add or Subtract $\left( - 5 m n + 3 m n ^ { 2 } - 3 m ^ { 2 } n ^ { 2 } \right) + \left( 5 m ^ { 2 } n + 6 m ^ { 2 } n ^ { 2 } - 6 m n \right)$