F(2)=x^2-6x+11

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Solution for F(2)=x^2-6x+11 equation: 



(2)=F^2-6F+11

We move all terms to the left:

(2)-(F^2-6F+11)=0

We get rid of parentheses

-F^2+6F-11+2=0

We add all the numbers together, and all the variables

-1F^2+6F-9=0

a = -1; b = 6; c = -9;
Δ = b2-4ac
Δ = 62-4·(-1)·(-9)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$F=\frac{-b}{2a}=\frac{-6}{-2}=+3$

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