Question

13.Simplify and express the answer in (a + bi) form.
(i) (5 − 6i) + (−7-10i)

Answer 1

- 2 - 16i

Explanation:

(5 - 6i) + (- 7- 10i ) ← remove parenthesis

= 5 - 6i - 7 - 10i ← collect like terms

= (5 - 7) + (- 6i - 10i)

= - 2 + (- 16i)

= - 2 - 16i