Question 750883
A = LW


105 = (x+8)(x)


105 = x^2 + 8x


x^2 + 8x = 105


x^2 + 8x - 105 = 0


(x + 15)(x - 7) = 0


x + 15 = 0 or x - 7 = 0


x = -15 or x = 7


Toss out x = -15


So the only solution that makes sense is x = 7


Width: 7


Length: 15