CPM Homework Help : PC3 Problem 1-127

Factor each expression.

$x^2+8x-9$
Hint (a):
The leading coefficient is $1$ , so what two numbers multiply to be $−9$ and sum to $8$ ?

$6x^2+48x-54$
Hint (b):
Each term in this expression is a multiple of $6$ , so begin by factoring out a $6$ .