Question

simplify.
$(-4u^{2}+5u - 1)+(3u^{2}+7u + 2)$

Explanation:

Step1: Remove parentheses

$-4u^2 + 5u - 1 + 3u^2 + 7u + 2$

Step2: Combine like $u^2$ terms

$-4u^2 + 3u^2 = -u^2$

Step3: Combine like $u$ terms

$5u + 7u = 12u$

Step4: Combine constant terms

$-1 + 2 = 1$

Step5: Combine all simplified terms

$-u^2 + 12u + 1$

Answer:

$-u^2 + 12u + 1$