9.86=(2*x^2)/2

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Solution for 9.86=(2*x^2)/2 equation: 


x in (-oo:+oo)

9.86 = (2*x^2)/2 // - (2*x^2)/2

9.86-((2*x^2)/2) = 0

9.86-x^2 = 0

-1*x^2 = -9.86 // : -1

x^2 = 9.86

x^2 = 9.86 // ^ 1/2

abs(x) = 9.86^(1/2)

x = 9.86^(1/2) or x = -9.86^(1/2)

x in { 9.86^(1/2), -9.86^(1/2) }

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