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=-6Y^2-24Y-24
We move all terms to the left:
-(-6Y^2-24Y-24)=0
We get rid of parentheses
6Y^2+24Y+24=0
a = 6; b = 24; c = +24;
Δ = b2-4ac
Δ = 242-4·6·24
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$Y=\frac{-b}{2a}=\frac{-24}{12}=-2$
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