(X1+x2)/2

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Solution for (X1+x2)/2 equation: 


x in (-oo:+oo)

(X^1+x^2)/2 = 0

(X+x^2)/2 = 0

1*x^2 = -X // : 1

x^2 = -X

x^2 = -X // ^ 1/2

abs(x) = (-X)^(1/2)

x = (-X)^(1/2) or x = -(-X)^(1/2)

x in { (-X)^(1/2), -(-X)^(1/2) }

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