Question

Factor the following expression using the GCF: 18x – 9.9(2 x – 9)9(2 x)2(9 x – 1)9(2 x – 1)

Answer 1

We need to factor the expression using the greatest common(GCF) factor.

The GCF is the largest factor that all numbers share.

Now, we need to find the GCF between 18x-9

Let us divide both numbers:

18/9 9/9

2 1

2/2

1

Hence, the GCF between 18x-9 is 9.

Then, we can simplify the expression as:

$9(2x-1)$

because 9*2x=18x and 9*-10=9.

Hence, the correct answer i