1/2x^2=15

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Solution for 1/2x^2=15 equation: 


x in (-oo:+oo)

(1/2)*x^2 = 15 // - 15

(1/2)*x^2-15 = 0

1/2*x^2 = 15 // : 1/2

x^2 = 30

x^2 = 30 // ^ 1/2

abs(x) = 30^(1/2)

x = 30^(1/2) or x = -30^(1/2)

x in { 30^(1/2), -30^(1/2) }

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