(x^3-121x)/(x/11)

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Solution for (x^3-121x)/(x/11) equation: 


D( x )

x/11 = 0

x/11 = 0

x/11 = 0

1/11*x = 0 // : 1/11

x = 0

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

(x^3-(121*x))/(x/11) = 0

(x^3-121*x)/(x/11) = 0

(x^3-121*x)/(1/11*x) = 0

x^3-121*x = 0

x*(x^2-121) = 0

1*x^2 = 121 // : 1

x^2 = 121

x^2 = 121 // ^ 1/2

abs(x) = 11

x = 11 or x = -11

x*(x-11)*(x+11) = 0

(x*(x-11)*(x+11))/(1/11*x) = 0

( x+11 )

x+11 = 0 // - 11

x = -11

( x-11 )

x-11 = 0 // + 11

x = 11

( x )

x = 0

x in { 0} 

x in { -11, 11 }

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