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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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

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

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