F(x)=6-x+7x^2

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Solution for F(x)=6-x+7x^2 equation: 



(F)=6-F+7F^2

We move all terms to the left:

(F)-(6-F+7F^2)=0

We get rid of parentheses

-7F^2+F+F-6=0

We add all the numbers together, and all the variables

-7F^2+2F-6=0

a = -7; b = 2; c = -6;
Δ = b2-4ac
Δ = 22-4·(-7)·(-6)
Δ = -164
Delta is less than zero, so there is no solution for the equation

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