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A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 18 in. by 30 in. by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.

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3 answers

  1. nevermind i figured this one out. the answer I got for this one is x(18-2x)(30-2x).

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  2. 540

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  3. 4x^3 -96x^2+540x

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