Question

Simplify each expression. Write your answer as a complex number.

4i+(2+8i)
(2-7i) - (5-3i)
(5-4i)+(2-7i)
(-3-4i) - (-3+5i

Answer 1

1. 2 + 12i

2. -3 - 4i

3. 7 - 11i

4. -9i

Explanation:

just add and subtract like 'i' is a variable and make sure the answer is in the form a+bi