100k^2-40k+4=0

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Solution for 100k^2-40k+4=0 equation: 



100k^2-40k+4=0

a = 100; b = -40; c = +4;
Δ = b2-4ac
Δ = -402-4·100·4
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$k=\frac{-b}{2a}=\frac{40}{200}=1/5$

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