Answer:
78*78+30*30+20*20+72
7456
Step-by-step explanation:
67
- 7 - i
Given
(- 10 - 2i) + (3 + i) ← remove parenthesis
= - 10 - 2i + 3 + i ← collect like terms
= - 7 - i
When you barter, you must trade it for something else in order to buy something.
