(-2x^2)/(x^2+4)

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Solution for (-2x^2)/(x^2+4) equation: 


D( x )

x^2+4 = 0

x^2+4 = 0

x^2+4 = 0

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

x^2 = -4

x in (-oo:+oo)

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

-2*x^2 = 0 // : -2

x^2 = 0

x = 0

x = 0

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