F(X)=x2-7x+20

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Solution for F(X)=x2-7x+20 equation: 



(F)=F2-7F+20

We move all terms to the left:

(F)-(F2-7F+20)=0

We add all the numbers together, and all the variables

-(+F^2-7F+20)+F=0

We get rid of parentheses

-F^2+7F+F-20=0

We add all the numbers together, and all the variables

-1F^2+8F-20=0

a = -1; b = 8; c = -20;
Δ = b2-4ac
Δ = 82-4·(-1)·(-20)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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