30=(x+4)(x+5)x

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Solution for 30=(x+4)(x+5)x equation: 



30=(x+4)(x+5)x

We move all terms to the left:

30-((x+4)(x+5)x)=0

We multiply parentheses ..

-((+x^2+5x+4x+20)x)+30=0



We calculate terms in parentheses: -((+x^2+5x+4x+20)x), so:

(+x^2+5x+4x+20)x

We multiply parentheses

x^3+5x^2+4x^2+20x

We do not support expression: x^3

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