R(x)=x^2+x-90/x^2-x-72

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Solution for R(x)=x^2+x-90/x^2-x-72 equation: 



(R)=R^2+R-90/R^2-R-72

We move all terms to the left:

(R)-(R^2+R-90/R^2-R-72)=0



Domain of the equation: R^2-R-72)!=0

R∈R



We get rid of parentheses

-R^2+R-R+90/R^2+R+72=0

We multiply all the terms by the denominator


-R^2*R^2+R*R^2-R*R^2+R*R^2+72*R^2+90=0

We add all the numbers together, and all the variables

72R^2-R^2*R^2+R*R^2-R*R^2+R*R^2+90=0

Wy multiply elements

72R^2-1R^4+R^3-1R^3+R^3+90=0

We do not support eRpression: R^4

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