Answer:
9 (i - 1)
Explanation:
Simplify the following:
-7 + 3 i - (-6 i + 2)
Hint: | Distribute -1 over 2 - 6 i.
-(2 - 6 i) = -2 + 6 i:
-2 + 6 i - 7 + 3 i
Hint: | Evaluate -2 + 6 i - 7 + 3 i.
-2 + 6 i - 7 + 3 i = (6 i + 3 i) + (-2 - 7) = -9 + 9 i:
9 i - 9
Hint: | Factor common terms from 9 i - 9.
Factor 9 out of 9 i - 9 giving 9 (i - 1):
Answer: 9 (i - 1)