CPM Homework Help : PC Problem 1-121

Factor each of the following expressions. Homework Help ✎
1. 4x² − 9y²
2. 8x³ − 2x⁷

Hint (a):

This is the difference of two perfect squares.

Answer (a):

(2x - 3y)(2x + 3y)

Hint (b):

Factor out the common factors first.

Partial Answer (b):

$2x^3(4-x^4)$

Now you have a difference of two perfect squares. Factor again.