Question

Subtract the complex number ​ 4−5i​​ from −4−8i​​. Enter your answer as a complex number in standard form.

Answer 1

- 8 - 3i

Explanation:

the required subtraction is

- 4 - 8i - (4 - 5i) ← distribute the parenthesis by - 1

= - 4 - 8i - 4 + 5i ← collect like terms

= (- 4 - 4) + (- 8i + 5i)

= - 8 + (- 3i)

= - 8 - 3i