SOLUTION: Perform the indicated operation, simplify, and express in standard form. (7-i) (3+2i)

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Perform the indicated operation, simplify, and express in standard form. (7-i) (3+2i)      Log On


   

Question 620587: Perform the indicated operation, simplify, and express in standard form.
(7-i) (3+2i)
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
(7-i) (3+2i)
FOIL
21 + 14i - 3i - 2i^2
combine like terms; we know i^2 = -1
21 + 11i - 2(-1)
21 + 11i + 2
23 + 11i