(-12/x^13)-(-6/x^7)

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Solution for (-12/x^13)-(-6/x^7) equation: 


D( x )

x^7 = 0

x^13 = 0

x^7 = 0

x^7 = 0

1*x^7 = 0 // : 1

x^7 = 0

x = 0

x^13 = 0

x^13 = 0

1*x^13 = 0 // : 1

x^13 = 0

x = 0

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

-(-6/(x^7))-12/(x^13) = 0

6*x^-7-12/(x^13) = 0

6*x^-7-12*x^-13 = 0

6*x^-7*(1-2*x^-6) = 0

-2*x^-6 = -1 // : -2

x^-6 = 1/2

-6 < 0

1/(x^6) = 1/2 // * x^6

1 = 1/2*x^6 // : 1/2

2 = x^6

x^6 = 2 // ^ 1/6

abs(x) = 2^(1/6)

x = 2^(1/6) or x = -2^(1/6)

6/(x^7) = 0

6*x^-7 = 0 // : 6

x^-7 = 0

x naleu017Cy do O

x in { 2^(1/6), -2^(1/6) }

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