Question

(80i) – (80 + 101) =
Express your answer in the form (a + bi).

Answer 1

(80 i) - (80 + 101)

80 i - ( 181)

-181 + 80 i

Explanation:

Answer 2

- 80 + 70i

Explanation:

Given

80i - (80 + 10i) ← distribute by - 1

= 80i - 80 - 10i ← collect like terms

= - 80 + 70i