subtract: 3+5i-(-4+6i) is the answer 7-i?

To subtract complex numbers, we can distribute the negative sign to each term inside the parentheses:

3 + 5i - (-4 + 6i)

= 3 + 5i + 4 - 6i (applying the negative sign)

Now, let's combine the real and imaginary parts separately:

Real Part: 3 + 4 = 7

Imaginary Part: 5i - 6i = -i

Therefore, the result of subtracting 3 + 5i - (-4 + 6i) is 7 - i, not 7 + i.