Question

what is the next best step in factoring the given expression using the ac - method?
a. factor by grouping.
b. divide the expression by the leading coefficient.
c. examine the signs of coefficients to determine the signs of the factors.
d. split the middle term, writing it as the sum of two factors of 30.
now split the middle term of the given expression so that they are sum of the factors of 30.
17x = 2x + \square

Explanation:

Step1: Isolate the unknown term

Subtract $2x$ from both sides.
$17x - 2x = 2x + \square - 2x$

Step2: Calculate the result

Simplify the left-hand side.
$15x = \square$

Answer:

$15x$