(-3x-29)/(x^-4x-21)

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Solution for (-3x-29)/(x^-4x-21) equation: 


D( x )

x = 0

x^-4*x-21 = 0

x = 0

x = 0

x^-4*x-21 = 0

x^-4*x-21 = 0

1*x^-3 = 21 // : 1

x^-3 = 21

-3 < 0

1/(x^3) = 21 // * x^3

1 = 21*x^3 // : 21

1/21 = x^3

x^3 = 1/21 // ^ 1/3

x = (1/21)^(1/3)

x in (-oo:0) U (0:(1/21)^(1/3)) U ((1/21)^(1/3):+oo)

(-3*x-29)/(x^-4*x-21) = 0

(-3*x-29)/(x^-3-21) = 0

-3*x-29 = 0 // + 29

-3*x = 29 // : -3

x = 29/(-3)

x = -29/3

x = -29/3

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