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April 18, 2014

Homework Help: Maths - Algebra

Posted by Mike on Saturday, November 12, 2011 at 4:45am.

Boxes are made by cutting 8cm squares from the corners of sheets of cardboard and then folding. The sheets of cardboard are 6cm lnbger than they are wide.

width of sheet= x
length of sheet = x+6

length of finished box = (x-10)
width of finished box = (x-16)

volume of the box = 8x^2-208x+1280cm^3


Find the dimensions of the sheet of cardboard needed to make a box with a volume of 1728cm^3.

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