Answer: 5. (2 + 5i) - (-6 + i) =8+4i
6.(2i)(6 + 3i) = -6 +12i
Step-by-step explanation: (2 + 5i) - (-6 +i)
By expanding the expression,
= 2 + 5i + 6 -i
Simplifying,
= 2+6+(5i-i) = 8+4i
(2i)(6 + 3i)
By expanding the terms,
= 12i+6i² (note: i²= -1)
= 12i-6 = -6+12i
Hope it helps!
