400=X(15-2x)(25-2x)

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Solution for 400=X(15-2x)(25-2x) equation: 



400=X(15-2X)(25-2X)

We move all terms to the left:

400-(X(15-2X)(25-2X))=0

We add all the numbers together, and all the variables

-(X(-2X+15)(-2X+25))+400=0

We multiply parentheses ..

-(X(+4X^2-50X-30X+375))+400=0



We calculate terms in parentheses: -(X(+4X^2-50X-30X+375)), so:

X(+4X^2-50X-30X+375)

We multiply parentheses

4X^3-50X^2-30X^2+375X

We do not support eXpression: X^3

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