F(x)=-3x^2-12

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Solution for F(x)=-3x^2-12 equation: 



(F)=-3F^2-12

We move all terms to the left:

(F)-(-3F^2-12)=0

We get rid of parentheses

3F^2+F+12=0

a = 3; b = 1; c = +12;
Δ = b2-4ac
Δ = 12-4·3·12
Δ = -143
Delta is less than zero, so there is no solution for the equation

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