math
posted by kev .
The volume of a rectangular prism is 2x^3+5x^2+x2. The height of the prism is 2x1, and the length of the prism is x+2. Find the width of the prism.

math 
Reiny
w(2x1)(x+2) = 2x^2 + 5x^2 + x  2
w(2x1)(x+2) = (2x1)(x+2)(x+1)
w = x+1
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