x^2/-2x-4 - solution

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Solution for x^2/-2x-4 equation:

x in (-oo:+oo)

x*((x^2)/(-2))-4 = 0

-1/2*x^3 = 4 // : -1/2

x^3 = -8

x^3 = -8 // ^ 1/3

x = -2

x = -2

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