Question

Simplify the expression show your work

Answer 1

Answer:
It looks like ur doing complex conjugates sooooo the answer is 21 - 12i

They way you show work is

(3-4i)(1+5i) - (2-i) <—— use foil method on first 2 parentheses

= 3 + 11i - 20i ^2 - 2 + i ( remember i^2 = -1)

= 3 + 11i + 20 -2 + i

= 21 + 12i