Question

simplify.
$(5y^2 - 3y - 4) + (-7y + 2)$

Explanation:

Step1: Remove parentheses

$5y^2 - 3y - 4 - 7y + 2$

Step2: Combine like $y$ terms

$5y^2 + (-3y -7y) - 4 + 2 = 5y^2 -10y - 4 + 2$

Step3: Combine constant terms

$5y^2 -10y + (-4 + 2) = 5y^2 -10y -2$

Answer:

$5y^2 - 10y - 2$