Question

please simplify the expression:
(4 + 2i) − (1 − 7i)

A. 5 − 5i

B. 5 + 9i

C. 3 + 9i

D.3 − 5i

Answer 1

Distribute the negative through and combine like terms.

(4 + 2i) − (1 − 7i)

4 + 2i − 1 + 7i

(4-1) + (2i + 7i)

(3) + (9i)

3 + 9i

Answer 2

Had a typo, but I fixed it

Answer 3

just combine the like terms , treat i like x

Answer 4

@jim_thompson5910 thank you for actually including the steps!

Answer 5

yw