11-09-2018
Mathematics

contestada

The area of a rectangle is 99in. The length of the rectangle is 2 in. Longer than the width. What is the width of the rectangle?

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lwilsonbook lwilsonbook

16-09-2018

(2+w)w=99

2w+w^2=99

w^2+2w-99=0

(w-9)(w+11)=0

W=9 w=-11

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