F(X)=x^2-8x+66

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Solution for F(X)=x^2-8x+66 equation: 



(F)=F^2-8F+66

We move all terms to the left:

(F)-(F^2-8F+66)=0

We get rid of parentheses

-F^2+F+8F-66=0

We add all the numbers together, and all the variables

-1F^2+9F-66=0

a = -1; b = 9; c = -66;
Δ = b2-4ac
Δ = 92-4·(-1)·(-66)
Δ = -183
Delta is less than zero, so there is no solution for the equation

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