(1/2x^2)-5=13

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Solution for (1/2x^2)-5=13 equation: 


x in (-oo:+oo)

(1/2)*x^2-5 = 13 // - 13

(1/2)*x^2-13-5 = 0

1/2*x^2 = 18 // : 1/2

x^2 = 36

x^2 = 36 // ^ 1/2

abs(x) = 6

x = 6 or x = -6

x in { 6, -6 }

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