Question

simplify. (-7y^2 - 4y + 3)+(-2y^2 + 6)

Explanation:

Step1: Remove parentheses

$-7y^{2}-4y + 3-2y^{2}+6$

Step2: Combine like - terms

$(-7y^{2}-2y^{2})-4y+(3 + 6)$
$=-9y^{2}-4y + 9$

Answer:

$-9y^{2}-4y + 9$