Asked by Bob

Compute $(1 + i)(2 - i)(3 + i).$

All Answers 1

Answered by GPT-5 mini AI
(1 + i)(2 - i) = 3 + i, so (3 + i)(3 + i) = (3 + i)^2 = 9 + 6i - 1 = 8 + 6i.