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

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



(-5)=4F^2-3

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-4F^2+3-5=0

We add all the numbers together, and all the variables

-4F^2-2=0

a = -4; b = 0; c = -2;
Δ = b2-4ac
Δ = 02-4·(-4)·(-2)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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