4a/a^2+8a

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Solution for 4a/a^2+8a equation: 


D( a )

a^2 = 0

a^2 = 0

a^2 = 0

1*a^2 = 0 // : 1

a^2 = 0

a = 0

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

8*a+(4*a)/(a^2) = 0

8*a^1+4*a^-1 = 0

(8*a^2+4*a^0)/(a^1) = 0 // * a^2

a^1*(8*a^2+4*a^0) = 0

a^1

8*a^2+4 = 0

8*a^2+4 = 0

DELTA = 0^2-(4*4*8)

DELTA = -128

DELTA < 0

a in { } 

a belongs to the empty set

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