Question

PLEASE HELP ME !

How many complex roots does 6x^5+x^4-3=0 have ?

Answer 1

complex roots always occur in pairs.

Answer 2

they can be even

Answer 3

Thanks but can u show me step by step

Answer 4

f(x)=6x^5+x^4-3
it has only one sign change
f(-x)=-6x^5+x^4-3
it has two sign changes
in all 1+2=3 real roots

and remaining 2 complex roots.
i may be wrong because i read it long long ago.