4x/x+3-12/x-3=4x^2+36/x^2-9

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Solution for 4x/x+3-12/x-3=4x^2+36/x^2-9 equation: 



4x/x+3-12/x-3=4x^2+36/x^2-9

We move all terms to the left:

4x/x+3-12/x-3-(4x^2+36/x^2-9)=0



Domain of the equation: x!=0

x∈R





Domain of the equation: x^2-9)!=0

x∈R



We add all the numbers together, and all the variables

4x/x-12/x-(4x^2+36/x^2-9)=0

We get rid of parentheses

-4x^2+4x/x-12/x-36/x^2+9=0

We calculate fractions

We do not support expression: x^3

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