(x^2+2x+20)/(x+6)

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Solution for (x^2+2x+20)/(x+6) equation: 


D( x )

x+6 = 0

x+6 = 0

x+6 = 0

x+6 = 0 // - 6

x = -6

x in (-oo:-6) U (-6:+oo)

(x^2+2*x+20)/(x+6) = 0

x^2+2*x+20 = 0

x^2+2*x+20 = 0

DELTA = 2^2-(1*4*20)

DELTA = -76

DELTA < 0

1 = 0

1/(x+6) = 0

x belongs to the empty set

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