9x2+126x+441=0

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Solution for 9x2+126x+441=0 equation: 



9x^2+126x+441=0

a = 9; b = 126; c = +441;
Δ = b2-4ac
Δ = 1262-4·9·441
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-126}{18}=-7$

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