3x2-9x/x-3

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Solution for 3x2-9x/x-3 equation: 


D( x )

x = 0

x = 0

x = 0

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

3*x^2-((9*x)/x)-3 = 0

3*x^2-9-3 = 0

3*x^2 = 12 // : 3

x^2 = 4

x^2 = 4 // ^ 1/2

abs(x) = 2

x = 2 or x = -2

x in { 2, -2 }

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