Question

If x^3=(2x)^2 and x≠ 0, then x=?

Answer 1

\[ x^3=(2x)^2 \]
(2x)^2 means 2x * 2x
or 2*2*x*x or 4x^2
so
\[ x^3 = 4x^2 \]
add -4x^2 to both sides
\[ x^3 - 4x^2 =0 \]
I would factor out x^2. what do you get ?

Answer 2

How would I do that?

Answer 3

It would be 4, sorry