Question

efetue a operaçao indicada (1+2i)+(-3-i)-5i

Answer 1

1 + 2i - 3 - i - 5i
1 - 3 + 2i - i - 5i
-2 +i - 5i
-2 - 4i

Answer 2

$(1 + 2i) + (-3 - i) - 5i \\ \\ 1 + 2i - 3 + i - 5i \\ \\ \\ => -2 - 4i$