Add. $\left( 5 a ^ { 2 } - 4 a - 5 \right) + \left( 6 a ^ { 2 } + 7 a + 2 \right)$
A) $11 a ^ { 2 } + 3 a - 3$
B) $11 a ^ { 2 } - 3 a + 3$
C) $11 a ^ { 2 } + 3 a + 3$
D) $11 a ^ { 2 } + 3 a - 5$
E) $- 1 a ^ { 2 } + 3 a - 3$

Question

Quizplus · Accepted Answer

To add the polynomials, combine like terms: $5a^2 + 6a^2 = 11a^2$, $-4a + 7a = 3a$, and $-5 + 2 = -3$, resulting in $11a^2 + 3a - 3$.

Add (5a2−4a−5)+(6a2+7a+2)\left( 5 a ^ { 2 } - 4 a - 5 \right) + \left( 6 a ^ { 2 } + 7 a + 2 \right)(5a2−4a−5)+(6a2+7a+2)

Add $\left( 5 a ^ { 2 } - 4 a - 5 \right) + \left( 6 a ^ { 2 } + 7 a + 2 \right)$