Question

Choose the correct simplification of the expression the (4x/y)^2.

A. 4x^2/y^2

B. 8x^2/y^2

C. 16x^2/y^2

D. 16x^2/y

Answer 1

When you have a square on the outside like this,\[\Large \left(\frac{ab}{c}\right)^2 \quad=\quad \frac{(ab)^2}{c^2} \quad=\quad \frac{a^2b^2}{c^2}\]
You have to square eeeeeverything inside.