F(x)=x2-4x+7

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Solution for F(x)=x2-4x+7 equation: 



(F)=F2-4F+7

We move all terms to the left:

(F)-(F2-4F+7)=0

We add all the numbers together, and all the variables

-(+F^2-4F+7)+F=0

We get rid of parentheses

-F^2+4F+F-7=0

We add all the numbers together, and all the variables

-1F^2+5F-7=0

a = -1; b = 5; c = -7;
Δ = b2-4ac
Δ = 52-4·(-1)·(-7)
Δ = -3
Delta is less than zero, so there is no solution for the equation

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