(z3-8)/(z2+2z+4)

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Solution for (z3-8)/(z2+2z+4) equation: 


D( z )

z^2+2*z+4 = 0

z^2+2*z+4 = 0

z^2+2*z+4 = 0

z^2+2*z+4 = 0

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

DELTA = -12

DELTA < 0

z in (-oo:+oo)

(z^3-8)/(z^2+2*z+4) = 0

z^2+2*z+4 = 0

z^2+2*z+4 = 0

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

DELTA = -12

DELTA < 0

1 = 0

z^3-8 = 0

1*z^3 = 8 // : 1

z^3 = 8

z^3 = 8 // ^ 1/3

z = 2

z = 2

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