(-18x^7+216x^6)/(-27x+324x)

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Solution for (-18x^7+216x^6)/(-27x+324x) equation: 


D( x )

324*x-27*x = 0

324*x-27*x = 0

324*x-27*x = 0

297*x = 0 // : 297

x = 0

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

(216*x^6-18*x^7)/(324*x-27*x) = 0

(216*x^6-18*x^7)/(297*x) = 0

216*x^6-18*x^7 = 0

18*x^6*(12-x) = 0

12-x = 0 // - 12

-x = -12 // * -1

x = 12

18*x^6*(x-12) = 0

(18*x^6*(x-12))/(297*x) = 0

( 18*x^6 )

18*x^6 = 0 // : 18

x^6 = 0

x = 0

( x-12 )

x-12 = 0 // + 12

x = 12

x in { 0} 

x = 12

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