-3-9x^-2-7-3x^-4-9/x^4

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Solution for -3-9x^-2-7-3x^-4-9/x^4 equation: 


D( x )

x^4 = 0

x = 0

x^4 = 0

x^4 = 0

1*x^4 = 0 // : 1

x^4 = 0

x = 0

x = 0

x = 0

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

-(9*x^-2)-(3*x^-4)-(9/(x^4))-7-3 = 0

-9*x^-2-3*x^-4-9*x^-4-7-3 = 0

-9*x^-2-12*x^-4-10 = 0

t_1 = x^-2

-12*t_1^2-9*t_1^1-10 = 0

-12*t_1^2-9*t_1-10 = 0

DELTA = (-9)^2-(-12*(-10)*4)

DELTA = -399

DELTA < 0

x belongs to the empty set

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