2,3+(-3,4)

To add two complex numbers, you simply add their real parts and their imaginary parts separately.

In this case, we have:

(2 + 3i) + (-3 + 4i)

Real part: 2 + (-3) = -1 Imaginary part: 3 + 4 = 7

So the sum is:

-1 + 7i