(1-4x^2)/(x^3)

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Solution for (1-4x^2)/(x^3) equation: 


D( x )

x^3 = 0

x^3 = 0

x^3 = 0

1*x^3 = 0 // : 1

x^3 = 0

x = 0

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

(1-(4*x^2))/(x^3) = 0

(1-4*x^2)/(x^3) = 0

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

x^2 = 1/4

x^2 = 1/4 // ^ 1/2

abs(x) = 1/2

x = 1/2 or x = -1/2

x in { 1/2, -1/2 }

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