Enter the number of complex zeros for the polynomial function in the box.
Not as tricky as it seems....!!!
Note we can factor this as
x ( x^4 + 4x^2 - 5 )
And the second polynomial can be factored as
x (x^2 + 5) (x^2 - 1) =
And we can continue
x ( x^2 + 5) (x + 1) ( x - 1)
We have thre real roots x = 0, x = -1 and x = 1
The "x^2 + 5" will produce two complex roots
So.....2 is the number of complex roots (zeroes)