Question

perform the operation.
$(x^2 + x - 2) + (-2x^2 - 9x - 7)$

Explanation:

Step1: Group like terms

$(x^2 - 2x^2) + (x - 9x) + (-2 - 7)$

Step2: Combine like terms

$(-1x^2) + (-8x) + (-9)$

Answer:

$-x^2 - 8x - 9$