Register
(3+5i)(5+7i) Solve by multiplying complex numbers
102k views
1 vote
(3+5i)(5+7i)

Solve by multiplying complex numbers

User Mgsxman
by
5.5k points

2 Answers

2 votes

Answer:


(3 + 5i)(5 + 7i) \in \: \C \\ = 15 + 21i + 25i - 35 \\ = - 20 + 46i \\ = 2( - 10 + 23i)

User Manikandan Sethuraju
by
5.8k points
3 votes

Answer:

-20 + 46i

Explanation:

(3 + 5i) (5 + 7i)

= (3 × 5 - 5 × 7) + (3 × 7 + 5 × 5) i

= (-20) + (46) i

= -20 + 46i

User Plong
by
5.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.6m questions

7.3m answers

Other Questions

What is the value of x? (-4) - x = 5
1/7 + 3/14 equivalent fractions
185g in the ratio 2:3
(3x1,000,000)+(3x100,000)+(2x100) what is this number written in standard form?
The function h = -t2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the time, in seconds, that the ball is in the air. Assuming the boy lives at sea
Link Copied!