Question

find the difference.
write your answer in
standard form.
$(12x^{2}-15x)-(x-9)$

Explanation:

Step1: Distribute the negative sign

$12x^2 - 15x - x + 9$

Step2: Combine like terms

$12x^2 + (-15x - x) + 9$
$12x^2 - 16x + 9$

Answer:

$12x^2 - 16x + 9$