Observe the graph:

The graph crosses the –axis near and .

Therefore, the zeros of the function are and .

Determine the number of positive real zeros, negative real zeros, and imaginary zeros.

The degree of the function is .

Thus, the function will have zeros.

Here already found three real zeros.

The remaining two zeros are imaginary zeros.

Therefore, the function has real zeros and imaginary zeros.

The function has real zeros and imaginary zeros.