A=x2-2x+3

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Solution for A=x2-2x+3 equation: 



=A2-2A+3

We move all terms to the left:

-(A2-2A+3)=0

We add all the numbers together, and all the variables

-(+A^2-2A+3)=0

We get rid of parentheses

-A^2+2A-3=0

We add all the numbers together, and all the variables

-1A^2+2A-3=0

a = -1; b = 2; c = -3;
Δ = b2-4ac
Δ = 22-4·(-1)·(-3)
Δ = -8
Delta is less than zero, so there is no solution for the equation

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