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27x^2+36x+12=0
a = 27; b = 36; c = +12;
Δ = b2-4ac
Δ = 362-4·27·12
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{-36}{54}=-2/3$
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