The perimeter of a rectangle is 84 feet.The length of the rectangle is 3 feet less than 2times it width.?

Let the length equal x then the width = 3x-3 A= l*w 60 = x(3x-3) 0 = 3x^2-3x - 60 factor 3(x^2 - x - 20) 3(x-5)(x+4) x= 5, -4 lengths can't be negative hence x = 5 length = 5 feet, width = 3(5) -3 = 12 feet.

WxL=60 W= 3L -3 (3L-3)L=60 3L^2-3L=60 thats as far as I could get.

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