Question

1. 7i + 6i - 8 - 5i

Explanation:

Step1: Combine like terms (imaginary parts)

We have \(7i + 6i - 5i\). Combining these, we get \((7 + 6 - 5)i = 8i\).

Step2: Combine with the real part

The real part is \(-3\). So putting it together with the imaginary part we found, we have \(-3 + 8i\).

Answer:

\(-3 + 8i\)