Can someone check my work?. 1. Simplify the given expression.. (7 βˆ’ 3i) β€’ (2 βˆ’ i) . 4 + i (MY ANSWER) . . 14 + 3i . . 11 βˆ’ 13i . . 14 βˆ’ 10i . 2. Simplify the given expression.. (βˆ’5 + 3i) β€’ (1 βˆ’ 2i) . βˆ’5 βˆ’ 6i (MY ANSWER). . 1 + 13i . . 2 + i . . 4 βˆ’ 5i . 3. Simplify the given expression.. (1 + 3i) + (2 βˆ’ 5i) . . βˆ’1 βˆ’ 2i . . 3 βˆ’ 2i (MY ANSWER). . 4 βˆ’ 3i . . 5 + 6i . 4. Simplify the given expression.. (6 + 2i) βˆ’ (8 βˆ’ 3i) . . βˆ’2 + 5i (MY ANSWER). . βˆ’2 βˆ’ i . . 8 + 5i . . 8 βˆ’ 5i .