posted by Marissa .
A square quilt for a child's bed has a border made up of 32 pieces with an area of x each, and 4 small squares with an area of 1 square inch each. The main part of the quilt is made of 64 squares with an area of x squared each.
If the quilt is 4 ft by 4 ft, what are the dimensions of the inside squares?
Total area = sum areas
16 = 32x + 4 + 64x^2
solve for x.