Question

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

PLEASE HELP
-2i is a zero of f(x) = x4 - 5x2 - 36

2i, 6i, -6i
2i, 3i, -3i
2i, 6, -6
2i, 3, -3

Answer 1

((x-4) - 5x2) - 36 = 0 ... 3.2 Find roots (zeroes) of : F(x) = 5x6 + 36x4 - 1 ..............

2i, 6, -6

Explanation: