(2x^2-18)/(2x-6)

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Solution for (2x^2-18)/(2x-6) equation: 


D( x )

2*x-6 = 0

2*x-6 = 0

2*x-6 = 0

2*x-6 = 0 // + 6

2*x = 6 // : 2

x = 6/2

x = 3

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

(2*x^2-18)/(2*x-6) = 0

2*x^2 = 18 // : 2

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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