Question

Using the given zero, find all other zeros of f(x).

-2i is a zero of f(x) = x4 - 32x2 - 144

I got 2i,6,-6

Answer 1

HI!!

Answer 2

hi :)

Answer 3

\(2i\) is certainly right
does this factor as
\[(x^2+4)(x^2-36)\]?

Answer 4

oh yes it does
you are right
\[\color\magenta\heartsuit\]

Answer 5

ok thanks :)