Originally Posted by

**manich44** Trying to find the maximum volume for a container to be made from a steel sheet measuring 3.4m X 1.9m.

This is my workings so far,where am i going wrong?

v = l x w x h

V(h) (304 - 2h)(1.9 - 2h) X h

(6.46 - 13.6h + 4h^2) x h

4h^3 - 13.6h^2 + 6.46h

v(h) 4h^3 - 13.6h^2 + 6.46h

v(h) 12h^2 - 27.2h + 6.46

0 = 12h^2 - 27.2h + 6.46 divide both sides by 12

0 = 2.266 + 0.538 = 2.804 I Think I am supposed to factor around here!

h = 2.804

V = 4h^3 -27.2 + 6.46 = 1390.2

Any advice appreciated

Thanks.....