The height of a right triangle is 7 inches greater than the length of its base. If the area of the triangle is 15 square inches, find the base.
(1/2)(b)(b+7) = 15
b^2+7b= 30
b^2+7b-30 = 0
(b+10)(b-3) = 0
b = 3
b^2+7b= 30
b^2+7b-30 = 0
(b+10)(b-3) = 0
b = 3