Practice problem
What is (12i+7)−(3−5i)(12i + 7) - (3 - 5i)(12i+7)−(3−5i)?
(9i+12)(9i + 12)(9i+12)
(7i+4)(7i + 4)(7i+4)
(17i+4)(17i + 4)(17i+4)
(19i+2)(19i + 2)(19i+2)
Type a concept, like “slope” or “photosynthesis”.
