Question 1058045
Area = Length * Width


x(x - 15) = 100


x^2 - 15x - 100 = 0


(x - 20)(x + 5) = 0


x = -5, 20


Since the negative result is impossible, the length is 20 inches.


The corresponding width is x - 15 = 20 - 15 = 5


Solution: Length = 20 inches, Width = 5 inches