the length of the rectangular malong is 5m longer than its width. The area of the malong is 84m²

Answer 1

Length = 12 m

Width = 7 m

12 x 7 = 84

12 = 5 + 7

84 = LW = (W+5)W = W^2 + 5W

that's a quadratic equation, solve for W by factoring to get

(W-12)(W-7) = 0

W = 7 or 12

L = 7 or 12, since L is larger

L=12 and W = 7