^2 means squared
asked Mar 20, 2012 in Algebra 1 Answers by anonymous

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1 Answer

Area = length * width

3x^2 + 9x = length * 3x

Divide both sides by 3x

x + 3 = length

The length is x + 3
answered Aug 1, 2014 by johnperkins Top Rated User (103,080 points)

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