4k2+36k+81=0

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Solution for 4k2+36k+81=0 equation: 



4k^2+36k+81=0

a = 4; b = 36; c = +81;
Δ = b2-4ac
Δ = 362-4·4·81
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$k=\frac{-b}{2a}=\frac{-36}{8}=-4+1/2$

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