X^2+y^2-2y+4=0

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Solution for X^2+y^2-2y+4=0 equation: 



X^2+X^2-2X+4=0

We add all the numbers together, and all the variables

2X^2-2X+4=0

a = 2; b = -2; c = +4;
Δ = b2-4ac
Δ = -22-4·2·4
Δ = -28
Delta is less than zero, so there is no solution for the equation

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