Question

B) (23+15i) - (10–5)

3) Multiply and write each expression in the form a+bi.
a) (3-4i)(5-2i)
b)
(4-2i)(7+81)
othi

Answer 1

To subtract complex numbers, we subtract the real parts and then the imaginary parts. The result is (a-c) + (b-d)i.

Step-by-step explanation:

To subtract complex numbers, we subtract the real parts and then the imaginary parts. Using the formula (a+bi) - (c+di) = (a-c) + (b-d)i, we can solve the expression (23+15i) - (10-5) as (23-10) + (15-(-5))i = 13 + 20i.

Learn more about Subtracting complex numbers