F(-4)=6x^2+3x+5

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Solution for F(-4)=6x^2+3x+5 equation: 



(-4)=6F^2+3F+5

We move all terms to the left:

(-4)-(6F^2+3F+5)=0

We add all the numbers together, and all the variables

-(6F^2+3F+5)-4=0

We get rid of parentheses

-6F^2-3F-5-4=0

We add all the numbers together, and all the variables

-6F^2-3F-9=0

a = -6; b = -3; c = -9;
Δ = b2-4ac
Δ = -32-4·(-6)·(-9)
Δ = -207
Delta is less than zero, so there is no solution for the equation

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