Evaluate [i18+(1i)25]^2

Answer 1

[18i + 25i]^2 = -1681

18i + 25i = 41i

square it gives i^2 times 41^2 = -41^2 = -1681, not the best year in American history

that "1i" part looks a little strange, as if maybe you meant something different from 1 times i