b2+1=2b

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Solution for b2+1=2b equation: 



b2+1=2b

We move all terms to the left:

b2+1-(2b)=0

We add all the numbers together, and all the variables

b^2-2b+1=0

a = 1; b = -2; c = +1;
Δ = b2-4ac
Δ = -22-4·1·1
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$b=\frac{-b}{2a}=\frac{2}{2}=1$

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