F(x)=x3+5x2-4x-20

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Solution for F(x)=x3+5x2-4x-20 equation: 



(F)=F3+5F^2-4F-20

We move all terms to the left:

(F)-(F3+5F^2-4F-20)=0

We get rid of parentheses

-5F^2-F3+4F+F+20=0

We add all the numbers together, and all the variables

-5F^2-1F^3+5F+20=0

We do not support eFpression: F^3

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