Add or subtract as indicated.
-$\left(8 a^{3}+6 a^{2}\right)+\left(4 a^{3}+5 a^{2}\right)$
A) $12 a^{3}+11 a^{2}$
B) $23 \mathrm{a}^{10}$
C) $12 a^{6}+11 a^{4}$
D) $23 a^{5}$

Name: Add or subtract as indicated. -$\left(8 a^{3}+6 a^{2}\right)+\left(4 a^{3}+5 a^{2}\right)$ A) $12 a^{3}+11 a^{2}$ B) $23 \mathrm{a}^{10}$ C) $12 a^{6}+11 a^{4}$ D) $23 a^{5}$
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Question

Quizplus · Accepted Answer

When adding polynomials, you combine like terms. Here, $8a^3 + 4a^3 = 12a^3$ and $6a^2 + 5a^2 = 11a^2$, resulting in $12a^3 + 11a^2$.

Add or Subtract as Indicated (8a3+6a2)+(4a3+5a2)\left(8 a^{3}+6 a^{2}\right)+\left(4 a^{3}+5 a^{2}\right)(8a3+6a2)+(4a3+5a2) A) 12a3+11a212 a^{3}+11 a^{2}12a3+11a2

Add or Subtract as Indicated $\left(8 a^{3}+6 a^{2}\right)+\left(4 a^{3}+5 a^{2}\right)$ A) $12 a^{3}+11 a^{2}$