algebra

posted by Elisa

The length of a rectangle is 2 meters more than its width. If the area is 63 square meters, what are the length and width?

1. Jen

L=w+2
L x w = 63
(w+2) x w = 63
w^2+2w=63
w^2+2w-63=0
What two factors multiply to -63 and add up to 2? 9 and -7. L=9, W=7

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