rectangular piece metal 10cm longer it wide squares sides 2 cm long are cut

A rectangular piece of metal is 10cm longer than it is wide. Squares with sides 2 cm long are cut from the four corners of the piece of metal, and the flaps are folded upward to form an open box. If the volume of the box is 832cm^3, what were the dimensions of the original piece of metal?
 

"Is this question part of your assignment? We Can Help!"