Question

To factor 9x^2 - 4, you can first rewrite the expression as: A. (3x-2)^2B. (x)^2 - (2)^2C. (3x)^2 - (2)^2D. None of the above

Answer 1

We have the expression 9x^2-4.

We know that both terms are squares, so we can express this as:

$9x^2-4=(3x)^2-2^2$

This is as much as we can transform this expression.

The answer is C.