X^2+3/X+2

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Solution for X^2+3/X+2 equation: 


D( X )

X = 0

X = 0

X = 0

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

X^2+3/X+2 = 0

1*X^2+3*X^-1+2*X^0 = 0

(1*X^3+2*X^1+3*X^0)/(X^1) = 0 // * X^2

X^1*(1*X^3+2*X^1+3*X^0) = 0

X^1

X^3+2*X+3 = 0

{ 1, -1, 3, -3 }

1

X = 1

X^3+2*X+3 = 6

1

-1

X = -1

X^3+2*X+3 = 0

-1

X+1

X^2-X+3

X^3+2*X+3

X+1

-X^3-X^2

2*X-X^2+3

X^2+X

3*X+3

-3*X-3

0

X^2-X+3 = 0

DELTA = (-1)^2-(1*3*4)

DELTA = -11

DELTA < 0

X in { -1} 

X = -1

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