SOLUTION: Suppose the area of a rectangle is 114.4m^ and the length is 14m longer than the width.Find the length and width of the rectangle.

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Question 1121404: Suppose the area of a rectangle is 114.4m^ and the length is 14m longer than the width.Find the length and width of the rectangle.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%28x%2B14%29=114.4

x%5E2%2B14x-114.4=0

discriminant, 14%5E2%2B4%2A114.4=196%2B457.6=653.6

x=%28-14%2Bsqrt%28653.6%29%29%2F2

x=highlight%285.7828%29----------width
-
x%2B14=highlight%2819.7828%29-------length