Question

Express (2-I) - (-1+3i) in the form of a + ib.

Answer 1

3 -4i

Explanation:

(2-i) - (-1+3i)

Distribute the minus sign

(2-i) + 1-3i

Combine like terms

3 -4i

Answer 2

`=3-4i`

Explanation:

So we have:

`(2-i)-(-1+3i)`

First, distribute:

`=(2-i)+1-3i`

Combine like terms:

`=-i-3i+2+1`

Add:

`=-4i+3`

So, in the a+bi format, we will have:

`=3-4i`