Question

multiply (8-3i) (6+5i)

Answer 1

So the first thing you want to do is is get the i's together and the regular numbers together! How would you do that?

Answer 2

\[ (a-bi) (c+di) \]
\[(ac+bd) +i(ad-bc)\]

Follow this rule and you will get the answer - just group real and imaginary numbers