Question

Which pair of complex numbers has a real-number product?

(1 + 31 (6)
(1 + 3)(2-31)
(1 + 3)(1 – 31)
0 (1 + 3/)(31)

Answer 1

The person ontop is correct! It is C.

Answer 2

Answer: C. (1 + 3i)(1 - 3i)

Explanation:

Took the test on edgnuity