12-12x=-3x2

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Solution for 12-12x=-3x2 equation: 



12-12x=-3x^2

We move all terms to the left:

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

We get rid of parentheses

3x^2-12x+12=0

a = 3; b = -12; c = +12;
Δ = b2-4ac
Δ = -122-4·3·12
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{12}{6}=2$

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