Question

Simplify the given expression below: (7 − 3i) • (2 − i)

Answer 1

Foil it, 7 x 2, -3i x -i, 7 x -i, and -3i x 2. It would come to 14+3 i^2-7i-6i. i^2=-1, so it would be 14-3=11 and -7i-6i=-13i
The answer is 11-13i