40=(10-2x)(14-2x)(x)

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Solution for 40=(10-2x)(14-2x)(x) equation: 



40=(10-2x)(14-2x)(x)

We move all terms to the left:

40-((10-2x)(14-2x)(x))=0

We add all the numbers together, and all the variables

-((-2x+10)(-2x+14)x)+40=0

We multiply parentheses ..

-((+4x^2-28x-20x+140)x)+40=0



We calculate terms in parentheses: -((+4x^2-28x-20x+140)x), so:

(+4x^2-28x-20x+140)x

We multiply parentheses

4x^3-28x^2-20x^2+140x

We do not support expression: x^3

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