The width of a rectangle is 14 inches less than its length. The area of the rectangle is 51 square inches. Find the demensions of the rectangle.

Answer 1

51 = LW = L(L-14) = L^2 - 14L

L^2 -14L = 51

L^2 -14L + 49 = 51+49

(L-7)^2 = 10^2

L-7 = 10

L = 17 inches

W = 3 inches

3x17=51 in^2