x2-3x+5=x+1

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Solution for x2-3x+5=x+1 equation: 



x2-3x+5=x+1

We move all terms to the left:

x2-3x+5-(x+1)=0

We add all the numbers together, and all the variables

x^2-3x-(x+1)+5=0

We get rid of parentheses

x^2-3x-x-1+5=0

We add all the numbers together, and all the variables

x^2-4x+4=0

a = 1; b = -4; c = +4;
Δ = b2-4ac
Δ = -42-4·1·4
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{4}{2}=2$

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