Question

perform the operation.\\((-4x^{2}+6x + 1)+(5x + 7)\\)

Explanation:

Step1: Remove parentheses

$-4x^2 + 6x + 1 + 5x + 7$

Step2: Combine like x terms

$-4x^2 + (6x + 5x) + 1 + 7 = -4x^2 + 11x + 1 + 7$

Step3: Combine constant terms

$-4x^2 + 11x + (1 + 7) = -4x^2 + 11x + 8$

Answer:

$-4x^2 + 11x + 8$