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=V(30-2V)(15-2V)
We move all terms to the left:
-(V(30-2V)(15-2V))=0
We add all the numbers together, and all the variables
-(V(-2V+30)(-2V+15))=0
We multiply parentheses ..
-(V(+4V^2-30V-60V+450))=0
We calculate terms in parentheses: -(V(+4V^2-30V-60V+450)), so:
V(+4V^2-30V-60V+450)
We multiply parentheses
4V^3-30V^2-60V^2+450V
We do not support eVpression: V^3
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