Question

Factor the following polynomial.
98x3 – 18x

Answer 1

Answer: 2x(49x^2 - 9)


Steps:

First, find the GCF

GCF= 2x

Next, factor it out

2x(49x^2 - 9)


This is the furthest you can factor it

Answer 2

2x(7x - 3)(7x +3)

Explanation:

Find common factors between the 2 numbers:

98x^3 - 18x

2x(49x^2 - 9)

now find what numbers multiplied together is 49, and find what numbers added together equals 0 and the product is 3, 7 times 7 is 49 and 3(-3) = 9 while 3 - 3 = 0 so:

2x(7x - 3)(7x +3)