(6x^2-54)/(9x+27)

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Solution for (6x^2-54)/(9x+27) equation: 


D( x )

9*x+27 = 0

9*x+27 = 0

9*x+27 = 0

9*x+27 = 0 // - 27

9*x = -27 // : 9

x = -27/9

x = -3

x in (-oo:-3) U (-3:+oo)

(6*x^2-54)/(9*x+27) = 0

6*x^2 = 54 // : 6

x^2 = 9

x^2 = 9 // ^ 1/2

abs(x) = 3

x = 3 or x = -3

x in { -3} 

x = 3

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