Let's evaluate the expression $(6 - 2i) - (-4 - i)$.

We will handle this by subtracting the real and imaginary parts separately:

1. Real part: $6 - (-4) = 6 + 4 = 10$
2. Imaginary part: $-2i - (-i) = -2i + i = -i$

So, the result is:

$(6 - 2i) - (-4 - i) = 10 - i$

Thus, in the form $a + bi$, we have:

• $a = 10$
• $b = -1$

Would you like further explanation, or do you have any questions about this?

Here are 5 related questions you might consider:

1. How do you add or subtract complex numbers in general?
2. What is the geometric interpretation of complex numbers on the complex plane?
3. How do you multiply two complex numbers?
4. What is the modulus of a complex number?
5. How can you convert a complex number from rectangular to polar form?

Tip: When subtracting complex numbers, treat the real and imaginary parts separately, just like combining like terms in algebra.