25. V = 2x^3 - 11x^2 + 10x + 8V = l x w x hV= (2x + 1) (x-4) (?)
V= (2x^2 - 7x -4)(?)
Plug in volume
2x^3 - 11x^2 + 10x + 8 = (2x^2 - 7x - 4)(?)
Divide to find your unknown
2x^3 - 11x^2 + 10x + 8/ 2x^2 - 7x -4 = ?
? = x -2 then we can multiply our dimensions to double check!
(x-2)(x-4)(2x + 1) = 2x^3 - 11x^2 + 10x + 8
Which works out when you distribute so it works!
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