A box from a square sheet

A box from a square sheet

6 marks
TGM Original
Squares of side x cm are cut from the corners of a 24 cm square card. Folding gives an open box with volume V=x(24-2x)2 cm3. Use differentiation to find its maximum volume, with a feasible-domain argument.

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Answer:\(1024\ \mathrm{cm}^3\) when \(x=4\ \mathrm{cm}\).

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