Question

simplify the following expression. $9x^{2}-15x + 4-8x-11x^{2}$

Explanation:

Step1: Combine like - terms of $x^2$

$(9x^2-11x^2)-15x + 4-8x$
$=-2x^2-15x + 4-8x$

Step2: Combine like - terms of $x$

$-2x^2+(-15x-8x)+4$
$=-2x^2-23x + 4$

Answer:

$-2x^2-23x + 4$