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September 20, 2014

September 20, 2014

Posted by **Sami** on Saturday, March 15, 2008 at 12:41am.

- math -
**drwls**, Saturday, March 15, 2008 at 2:27amLet x be the width of the square corners that are removed. The base of the box will have area

(20 - 2x)^2 = 400 -80x + 4x^2

and the height of the sides will be x.

The volume is

V = x (4x^2 - 80x + 400)

Pick the value of x that gives you the volume they want. There is a very wide range of x values, from less than 1 inch to more than 9 inches, that result in a volume of more than 100 cm^3. Are you sure you copied the problem correctly?

- math -
**Sami**, Tuesday, March 18, 2008 at 7:26pmthankx alot for the answer, but i got the same equation and can not factor it.

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