r^2-58r+841=0

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Solution for r^2-58r+841=0 equation: 



r^2-58r+841=0

a = 1; b = -58; c = +841;
Δ = b2-4ac
Δ = -582-4·1·841
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$r=\frac{-b}{2a}=\frac{58}{2}=29$

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