9x2-6x=-1

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Solution for 9x2-6x=-1 equation: 



9x^2-6x=-1

We move all terms to the left:

9x^2-6x-(-1)=0

We add all the numbers together, and all the variables

9x^2-6x+1=0

a = 9; b = -6; c = +1;
Δ = b2-4ac
Δ = -62-4·9·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{6}{18}=1/3$

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