F(-7)=7x^2+6x+1

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Solution for F(-7)=7x^2+6x+1 equation: 



(-7)=7F^2+6F+1

We move all terms to the left:

(-7)-(7F^2+6F+1)=0

We add all the numbers together, and all the variables

-(7F^2+6F+1)-7=0

We get rid of parentheses

-7F^2-6F-1-7=0

We add all the numbers together, and all the variables

-7F^2-6F-8=0

a = -7; b = -6; c = -8;
Δ = b2-4ac
Δ = -62-4·(-7)·(-8)
Δ = -188
Delta is less than zero, so there is no solution for the equation

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