(8x^2/5)/(7x/9)

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Solution for (8x^2/5)/(7x/9) equation: 


D( x )

(7*x)/9 = 0

(7*x)/9 = 0

(7*x)/9 = 0

7/9*x = 0 // : 7/9

x = 0

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

((8*x^2)/5)/((7*x)/9) = 0

72/35*x = 0 // : 72/35

x = 0

x in { 0} 

x belongs to the empty set

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