Simplify.
-$\left( 10 a ^ { 2 } b - 12 a b + 8 \right) - \left( 2 a ^ { 2 } b + 2 a b - 4 \right)$
A) $8 a ^ { 2 } b - 14 a b + 12$
B) $12 a ^ { 2 } b - 14 a b + 12$
C) $8 a ^ { 2 } b + 14 a b - 12$
D) $8 a ^ { 2 } b + 14 a b + 12$

Question

Quizplus · Accepted Answer

Subtracting the second polynomial from the first, we get: $10a^2b - 2a^2b = 8a^2b$, $-12ab - (-2ab) = -14ab$, and $8 - (-4) = 12$. Thus, the simplified expression is $8a^2b - 14ab + 12$.

Simplify - (10a2b−12ab+8)−(2a2b+2ab−4)\left( 10 a ^ { 2 } b - 12 a b + 8 \right) - \left( 2 a ^ { 2 } b + 2 a b - 4 \right)(10a2b−12ab+8)−(2a2b+2ab−4)

Simplify
- $\left( 10 a ^ { 2 } b - 12 a b + 8 \right) - \left( 2 a ^ { 2 } b + 2 a b - 4 \right)$