Question

State how many imaginary and real zeros the function has.

f(x) = x^4 - 8x^3 + 17x^2 - 8x +16

Answer 1

0 imaginary; 4 real

2 imaginary; 2 real

3 imaginary; 1 real

4 imaginary; 0 real

Answer 2

So 4 imaginary and 0 real

Answer 3

yes, do you have a graphing calculator?

Answer 4

No

Answer 5

very useful

Answer 6

Ohh okay!!

Answer 7

i just expanded the window on the graph and saw this extra set of curves, that is where the imaginary 0s are coming from