Pls help... asappp pls.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?

How many zeros does this polynomial function, y=(x-8)(x+3)^2