X^2/2=12.5

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Solution for X^2/2=12.5 equation: 


X in (-oo:+oo)

(X^2)/2 = 12.5 // - 12.5

(X^2)/2-12.5 = 0

1/2*X^2 = 12.5 // : 1/2

X^2 = 25

X^2 = 25 // ^ 1/2

abs(X) = 5

X = 5 or X = -5

X in { 5, -5 }

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