F(x)=-3x^2+4x-8

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Solution for F(x)=-3x^2+4x-8 equation: 



(F)=-3F^2+4F-8

We move all terms to the left:

(F)-(-3F^2+4F-8)=0

We get rid of parentheses

3F^2-4F+F+8=0

We add all the numbers together, and all the variables

3F^2-3F+8=0

a = 3; b = -3; c = +8;
Δ = b2-4ac
Δ = -32-4·3·8
Δ = -87
Delta is less than zero, so there is no solution for the equation

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