(X^2+6X+9)/(2X+6)

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Solution for (X^2+6X+9)/(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)

(X^2+6*X+9)/(2*X+6) = 0

X^2+6*X+9 = 0

X^2+6*X+9 = 0

DELTA = 6^2-(1*4*9)

DELTA = 0

X = -6/(1*2)

X = -3 or X = -3

(X+3)^2 = 0

((X+3)^2)/(2*X+6) = 0

X+3 = 0 // - 3

X = -3

X in { -3} 

X belongs to the empty set

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