1/2x^2=45

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Solution for 1/2x^2=45 equation: 


x in (-oo:+oo)

(1/2)*x^2 = 45 // - 45

(1/2)*x^2-45 = 0

1/2*x^2 = 45 // : 1/2

x^2 = 90

x^2 = 90 // ^ 1/2

abs(x) = 3*10^(1/2)

x = 3*10^(1/2) or x = -(3*10^(1/2))

x in { 3*10^(1/2), -(3*10^(1/2)) }

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