2x/(x^2+7)^2

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Solution for 2x/(x^2+7)^2 equation: 


D( x )

(x^2+7)^2 = 0

(x^2+7)^2 = 0

(x^2+7)^2 = 0

1*x^2 = -7 // : 1

x^2 = -7

x in (-oo:+oo)

(2*x)/((x^2+7)^2) = 0

2*x = 0 // : 2

x = 0

x = 0

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