V=x(20-2x)(20-2x)

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Solution for V=x(20-2x)(20-2x) equation: 



=V(20-2V)(20-2V)

We move all terms to the left:

-(V(20-2V)(20-2V))=0

We add all the numbers together, and all the variables

-(V(-2V+20)(-2V+20))=0

We multiply parentheses ..

-(V(+4V^2-40V-40V+400))=0



We calculate terms in parentheses: -(V(+4V^2-40V-40V+400)), so:

V(+4V^2-40V-40V+400)

We multiply parentheses

4V^3-40V^2-40V^2+400V

We do not support eVpression: V^3

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