4x2-72x+324=0

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Solution for 4x2-72x+324=0 equation: 



4x^2-72x+324=0

a = 4; b = -72; c = +324;
Δ = b2-4ac
Δ = -722-4·4·324
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{72}{8}=9$

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