(x3+5x2+10x+8)/(x+2)

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Solution for (x3+5x2+10x+8)/(x+2) equation: 


D( x )

x+2 = 0

x+2 = 0

x+2 = 0

x+2 = 0 // - 2

x = -2

x in (-oo:-2) U (-2:+oo)

(x^3+5*x^2+10*x+8)/(x+2) = 0

x^3+5*x^2+10*x+8 = 0

x^3+5*x^2+10*x+8 = 0

{ 1, -1, 2, -2, 4, -4, 8, -8 }

1

x = 1

x^3+5*x^2+10*x+8 = 24

1

-1

x = -1

x^3+5*x^2+10*x+8 = 2

-1

2

x = 2

x^3+5*x^2+10*x+8 = 56

2

-2

x = -2

x^3+5*x^2+10*x+8 = 0

-2

x+2

x^2+3*x+4

x^3+5*x^2+10*x+8

x+2

-x^3-2*x^2

3*x^2+10*x+8

-3*x^2-6*x

4*x+8

-4*x-8

0

x^2+3*x+4 = 0

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

DELTA = -7

DELTA < 0

x in { -2} 

x+2 = 0

1 = 0

x belongs to the empty set

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