Question

add. your answer should be an expanded polynomial in standard (-4b^2 + 8b) + (-4b^3 + 5b^2 - 8b) =

Explanation:

Step1: Remove parentheses

$-4b^{2}+8b - 4b^{3}+5b^{2}-8b$

Step2: Combine like - terms

Combine the $b^{2}$ terms: $-4b^{2}+5b^{2}=b^{2}$
Combine the $b$ terms: $8b - 8b = 0$
The polynomial becomes $-4b^{3}+b^{2}+0$

Answer:

$-4b^{3}+b^{2}$