Question 2 What is the product of 3 – 5i and 2 + 7i ?

Question

asked Jul 19, 2021 112k views

1 Answer

Krema · Answer 1 · 2021-07-23T05:15:01+0000

Answer:

41 + 11i

Explanation:

Note that i² = - 1

Given

(3 - 5i)(2 + 7i) ← expand using FOIL

= 6 + 21i - 10i - 35i² ← collect like terms

= 6 + 11i + 35

= 41 + 11i