V=(9-2x)(9-2x)x

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Solution for V=(9-2x)(9-2x)x equation: 



=(9-2V)(9-2V)V

We move all terms to the left:

-((9-2V)(9-2V)V)=0

We add all the numbers together, and all the variables

-((-2V+9)(-2V+9)V)=0

We multiply parentheses ..

-((+4V^2-18V-18V+81)V)=0



We calculate terms in parentheses: -((+4V^2-18V-18V+81)V), so:

(+4V^2-18V-18V+81)V

We multiply parentheses

4V^3-18V^2-18V^2+81V

We do not support eVpression: V^3

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