(x^2-3x-18)/x+3

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Solution for (x^2-3x-18)/x+3 equation: 


D( x )

x = 0

x = 0

x = 0

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

(x^2-(3*x)-18)/x+3 = 0

(x^2-3*x-18)/x+3 = 0

(x^2-3*x-18)/x+(3*x)/x = 0

x^2-3*x+3*x-18 = 0

x^2-18 = 0

(x^2-18)/x = 0

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

x^2-18 = 0

1*x^2 = 18 // : 1

x^2 = 18

x^2 = 18 // ^ 1/2

abs(x) = 3*2^(1/2)

x = 3*2^(1/2) or x = -(3*2^(1/2))

x in { 3*2^(1/2), -(3*2^(1/2)) }

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