Given $A=3+4i$ and $B=2+5i$, find AB

Question

Jakob · Accepted Answer

Hi, Cleopas. In order to multiply these two complex numbers, use FOIL (First Outside, Inside Last). This technique gives us AB = (3+4i)(2+5i) = 15i + 6 - 20 + 8i = 23i - 14.

David · Answer

100%

Given \\(A=3+4i\\) and \\(B=2+5i\\), find AB