Question 578453
How do I simplify (3-8i)(5+6i) in a+bi form ? 
:
(3-8i)(5+6i)
FOIL
15 + 18i - 40i - 48(i^2)
i^2 = -1
15 - 22i - 48(-1)
minus * minus is a plus
15 - 22i + 48
63 - 22i