Question

Please please help me out with this !!!!!!!!

Answer 1

(-2-3i)-(3+9i)
= 6i-5

Answer 2

13

Explanation:

Expressing the complex numbers in coordinate form

- 2 - 3i → (- 2, - 3)

3 + 9i → (3, 9)

To calculate the distance d use the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 2, - 3) and (x₂, y₂ ) = (3, 9)

d =
`√((3+2)^2+(9+3)^2)`

=
`√(5^2+12^2)`

=
`√(25+144)`

=
`√(169)`

= 13