Answer:
9x^2-3x - 12
Step-by-step explanation:
(9x^2 + 6x - 7) + (-9x -5)
Simplify the expression:
9x^2 - 3x - 12
Factor:
Add and subtract the second term to the expression and factor by grouping.
3( x + 1 ) ( 3x - 4 )
Standard form:
9x^2 - 3x - 12
I hope this helps :)
