Question

When factoring 16x2 -

Answer 1

Answer:

we conclude that the first step is to find the greatest common factor (GCF).

Hence, option C is correct.

Step-by-step explanation:

$16x^2\:-36$

As 4 is the greatest common factor of the expression, so factor out common term 4:

i.e.

$16x^2\:-36=4\left(4x^2-9\right)$

Thus, the first step is to find the greatest common factor (GCF)

Now, solving the remaining portion

$16x^2\:-36=4\left(4x^2-9\right)$

as (2x+3) and (2x-3) are the factors of (4x²-9)

i.e. (4x²-9) = (2x+3) (2x-3)

Thus, the expression becomes

$16x^2\:-36=4\left(2x+3\right)\left(2x-3\right)$

Therefore, we conclude that the first step is to find the greatest common factor (GCF).

Hence, option C is correct.