Question 944103
Eric is building an open top box using a piece of cardboard that is twice as long as it is wide. To make the walls of the box, he cuts a one inch square from each corner of the box. If the volume of the box is 144 in^3

what were the original dimensions of the cardboard?
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Original dimensions:: x and 2x
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New dimensions:: x-2 ; 2x-2 ; x
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Equations:
x(x-2)(2(x-1) = 144
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2x(x^2-3x+1) = 144
x^3 - 3x^2 + x - 72 = 0
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x = 5.34
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Cheers,
Stan H.
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