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March 30, 2015

March 30, 2015

Posted by **Anonymous** on Tuesday, March 8, 2011 at 3:10am.

- geometry -
**Reiny**, Tuesday, March 8, 2011 at 6:46amwidth ---- x

length --- x+4

height ---x-2

x(x+4)(x-2) = 240

x(x^2 + 2x -8) = 240

x^3 + 2x^2 - 8x - 240 = 0

after a few trials, I found x = 6 to work.

( tried x=3,4,5,6 , no need to try any negatives or x<2)

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