3.14(x^2-6x+9)=0

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Solution for 3.14(x^2-6x+9)=0 equation: 



3.14(x^2-6x+9)=0

We multiply parentheses

3.14x^2-18.84x+28.26=0

a = 3.14; b = -18.84; c = +28.26;
Δ = b2-4ac
Δ = -18.842-4·3.14·28.26
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{18.84}{6.28}=3$

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