Question

A 5cm piece of wire is cut into two parts such that a square formed by bending on part will have four times the area of a square formed by bending the other part, what is the length of the longer part.

I just don't know what the equation would look like.

Answer 1

4 times the area means 2 times the side length. So, if x is the smaller side,

4x + 4(2x) = 5