(-5z^8)/(3z^2)*(9z^7)/25z

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Solution for (-5z^8)/(3z^2)*(9z^7)/25z equation: 


D( z )

3*z^2 = 0

3*z^2 = 0

3*z^2 = 0

3*z^2 = 0 // : 3

z^2 = 0

z = 0

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

z*((9*((-5*z^8)/(3*z^2))*z^7)/25) = 0

-3/5*z^14 = 0 // : -3/5

z^14 = 0

z = 0

z in { 0} 

z belongs to the empty set

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