42x^6/(7x^(8/9))

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Solution for 42x^6/(7x^(8/9)) equation: 


D( x )

7*x^(8/9) = 0

7*x^(8/9) = 0

7*x^(8/9) = 0

7*x^(8/9) = 0 // : 7

x^(8/9) = 0

x = 0

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

(42*x^6)/(7*x^(8/9)) = 0

6*x^(46/9) = 0 // : 6

x^(46/9) = 0

x = 0

x in { 0} 

x belongs to the empty set

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