Give an example of a fourth-degree polynomial equation that has no real zeros.?

Question

What are the roots of your example?

Answer 1

x^4=-39
The roots are complex, but this is a 4th degree polynomial.

Answer 2

x^4+2x^2+1=0

Answer 3

the person above me's example is not correct
It does have real roots as well as complex roots
x^4 = 39

There are real roots as well as complex roots..
the roots are complex.
they are approximately
2.499i
-2.499
-2.499i
2.499