I think this goes in this section but anyway...

Simplify..

-3-i/1+i + 1+3i/1-i

I hope this makes sense.

The answer is -3+3i

This is my working but I can't get the answer..

-3-i/1+i * 1-i/1-i

(-3-i)(1-i)

-3(1-i)-i(1-i)

-3+3i-i-1

-4+2i

Then....

1+3i/1-i * 1+i/1+i

(1+3i)(1+i)

(1+3i)(1+i)

1(1+i)+3i(1+i)

1+i+3i-3

-2+4i

Finally..

-4+2i-2+4i

-6+6i

This is my working but I cannot get the right answer....

Thanks