Question

se u =4+3i e v =5-2i, entao u v é?

Answer 1

$uv=(4+3i)(5-2i)=20-8i+15i-6i^2=\boxed{26+7i}$

Answer 2

uv
(4 + 3i)(5 - 2i)
20 - 8i + 15i - 6i²
20 + 7i - 6.(-1)
20 + 7i + 6
26 + 7i