A square's side lenth is X. A rectangles side lengths are (X-3) and(X+5) respectively. The square and the rectangle are equal in area. Find the value of X.
We know that the area of a square is s^2 (s=length of a side) and the area of a rectangle is bh (base*height). So the solution to the problem is simply s^2 = bh. In this case it would be:
