Practice problem
What is the sum of 5+6i5 + 6i5+6i and 4−2i4 -2i4−2i?
1+4i1 + 4i1+4i
1+8i1 + 8i1+8i
9+4i9 + 4i9+4i
9+8i9 + 8i9+8i
Type a concept, like “slope” or “photosynthesis”.