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10-10-2017
Mathematics

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A rectangle has length x+9 and width 2x-1 what are the areas of the rectangle

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kritter1 kritter1

10-10-2017

Area=l*w

a=(x+9)(2x-1) <--- Use FOIL

a=2x²-x+18x-9
a=2x²+17x-9

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