F(x)=-x2+8x-14

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Solution for F(x)=-x2+8x-14 equation: 



(F)=-F2+8F-14

We move all terms to the left:

(F)-(-F2+8F-14)=0

We add all the numbers together, and all the variables

-(-1F^2+8F-14)+F=0

We get rid of parentheses

1F^2-8F+F+14=0

We add all the numbers together, and all the variables

F^2-7F+14=0

a = 1; b = -7; c = +14;
Δ = b2-4ac
Δ = -72-4·1·14
Δ = -7
Delta is less than zero, so there is no solution for the equation

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