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16 November, 07:21

The length is ten more than the width, and the total area is 144 square feet. Write the equation and find out the dimensions, in feet, of her backyard.

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  1. 16 November, 07:43
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    Lets say the with is equal to W and the length is W+10=L

    W (W+10) = 144 then

    W^2 + 10W=144

    W^2 + 10W - 144 = 0

    (W-8) * (W+18) = 0

    W=-8 but if you multiply - 8*18=-144 so just turn - 8 into a positive 8*18=144 and now it is W=8 and L=18 if you wonder what L means it means Length.
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