Question

factor the expression completely. 72 + 63x

Explanation:

Step1: Find GCD of 72 and 63

The greatest common divisor of 72 and 63 is 9.

Step2: Factor out the GCD

Rewrite each term as a product of 9 and another factor, then factor out 9.
$72 + 63x = 9\times8 + 9\times7x = 9(8 + 7x)$

Answer:

$9(8 + 7x)$