(49x^5y^-5/7x^9y^-3)^-9

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Solution for (49x^5y^-5/7x^9y^-3)^-9 equation: 


D( x )

x^9*((49*x^5*y^-5)/7)*y^-3 = 0

x^9*((49*x^5*y^-5)/7)*y^-3 = 0

x^9*((49*x^5*y^-5)/7)*y^-3 = 0

7*x^14*y^-8 = 0 // : 7*y^-8

x^14 = 0

x = 0

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

(x^9*((49*x^5*y^-5)/7)*y^-3)^-9 = 0

1/40353607*x^-126*y^72 = 0 // : 1/40353607*y^72

x^-126 = 0

x naleu017Cy do O

x belongs to the empty set

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