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-3x^2-36x-108=0
a = -3; b = -36; c = -108;
Δ = b2-4ac
Δ = -362-4·(-3)·(-108)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{36}{-6}=-6$
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