Question

State how many imaginary and real zeros the function has.

f(x) = x^3 - 20x^2 + 123x - 216

is it 3 real and 0 imaginary?

Answer 1

Yes
\[
x^3-20 x^2+123 x-216=(x-9) (x-8)
(x-3)
\]

Answer 2

thank you!

Answer 3

yw