Which subtraction expression

has the difference 1 + 4i?

a. (-2 + 6i) - (1 - 2i)

b. (-2 + 6i) - (-1 - 2i)

c. (3 + 5i) - (2 - i)

d. (3 + 5i) - (2 + i)

If you would like to know which subtraction expression has the difference 1 + 4i, you can calculate this using the following steps:

a. (-2 + 6i) - (1 - 2i) = - 2 + 6i - 1 + 2i = - 3 + 8i

b. (-2 + 6i) - (-1 - 2i) = - 2 + 6i + 1 + 2i = - 1 + 8i

c. (3 + 5i) - (2 - i) = 3 + 5i - 2 + i = 1 + 6i

d. (3 + 5i) - (2 + i) = 3 + 5i - 2 - i = 1 + 4i

The correct result would be d. (3 + 5i) - (2 + i).