Question 886204
let w be width, then length = 3w
Area of rectangle(A) = length times width
68 = (3w+2) * (w-1)
68 = 3w^2 -w -2
subtract 68 from both sides of =
3w^2 -w -70 = 0
(3w+14) * (w-5) = 0
w = -14/3 or 5
we want the positive value for w
therefore the length = 15 and width = 5
check answer
68 = (15+2) * (5-1) = 17 * 4 = 68
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