What is the product of the complex numbers below? (4-2i) (1 +7i)

asked Aug 19, 2022 79.5k views

5 votes

What is the product of the complex numbers below?
(4-2i) (1 +7i)

4.1k points

Please log in or register to add a comment.

1 vote

Answer:

Explanation:

Note that i² = - 1

Given

(4 - 2i)(1 + 7i) ← expand factors using FOIL

= 4 + 28i - 2i - 14i²

= 4 + 26i + 14

= 18 + 26i → B

Ashishssoni answered Aug 24, 2022

3.9k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.7m answers