Question

simplify the expression.
$(3x^2 - 3x + 9) + (-5x^2 - 8x - 7)$

Explanation:

Step1: Remove parentheses

$3x^2 - 3x + 9 - 5x^2 - 8x - 7$

Step2: Combine like terms for $x^2$

$3x^2 - 5x^2 = -2x^2$

Step3: Combine like terms for $x$

$-3x - 8x = -11x$

Step4: Combine constant terms

$9 - 7 = 2$

Step5: Combine all results

$-2x^2 - 11x + 2$

Answer:

$-2x^2 - 11x + 2$