1/2x^2=12.5

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Solution for 1/2x^2=12.5 equation: 


x in (-oo:+oo)

(1/2)*x^2 = 12.5 // - 12.5

(1/2)*x^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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