28x^-2/(4x)^2

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Solution for 28x^-2/(4x)^2 equation: 


D( x )

x = 0

(4*x)^2 = 0

x = 0

x = 0

(4*x)^2 = 0

(4*x)^2 = 0

16*x^2 = 0 // : 16

x^2 = 0

x = 0

x in (-oo:0) U (0:+oo)

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

7/4*x^-4 = 0 // : 7/4

x^-4 = 0

x naleu017Cy do O

x belongs to the empty set

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