x2(x+1)=3(4-x)

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Solution for x2(x+1)=3(4-x) equation: 



x2(x+1)=3(4-x)

We move all terms to the left:

x2(x+1)-(3(4-x))=0

We add all the numbers together, and all the variables

x2(x+1)-(3(-1x+4))=0

We multiply parentheses

x^3+x^2-(3(-1x+4))=0



We calculate terms in parentheses: -(3(-1x+4)), so:

3(-1x+4)

We multiply parentheses

-3x+12

Back to the equation:

-(-3x+12)



We do not support expression: x^3

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