Answer:
4 solutions counting any possible multiplicity
Explanation:
Recall that if one considers the Complex Number System, a polynomial has as many solutions (including multiplicity) as its degree.
So in this case, where we are considering a polynomial of order 4 Notice that the term
, is in reality the leading term (term with the highest power of the variable) of this polynomial.
Therefore, in the Complex Number System, this polynomial would have 4 solutions.