x=3;3x^2-21/3x=

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Solution for x=3;3x^2-21/3x= equation: 



x=33x^2-21/3x=

We move all terms to the left:

x-(33x^2-21/3x)=0



Domain of the equation: 3x)!=0

x!=0/1

x!=0

x∈R



We get rid of parentheses

-33x^2+x+21/3x=0

We multiply all the terms by the denominator


-33x^2*3x+x*3x+21=0

Wy multiply elements

-99x^3+3x^2+21=0

We do not support expression: x^3

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