Question

Please help!
z1=-3+4i
z2=2-1
Perform the indicated operations and write the answer in the form a + bi.
z1+z2= ?

Answer 1

is z2=2-1 or is it z2=2-i
???

Answer 2

z2=2-i, I'm sorry :/

Answer 3

z1 + z2 = (-3 + 4i) + (2 - i)
= -3 + 4i + 2 - i
= -3 + 2 + 4i - i
= (-3 + 2) + (4i - i)
= -1 + 3i

Answer 4

it's like adding "like terms" when you add/subtract complex numbers...:)

Answer 5

Thanks so much!