Step 1 :By the Fundamental Theorem of Algebra, a polynomial of degree n will have exactly n roots. These roots can either be real or complex.
Step 2 :Since the given function is a polynomial of degree 5, it will have exactly 5 roots. However, complex roots always occur in conjugate pairs. Therefore, if there are any complex roots, there will be an even number of them.
Step 3 :Hence, the maximum number of real roots that the function can have is 5, which would occur if all of the roots are real and none are complex.