Register

Simplify the expression (10 + 3i)(10 - 3i) 91 109 100-30i 100+30i

Simplify the expression (10 + 3i)(10 - 3i) 91 109 100-30i 100+30i
asked 44.2k views
3 votes
Simplify the expression (10 + 3i)(10 - 3i)

91
109
100-30i
100+30i

asked
User Mitch Lillie
by
8.3k points

2 Answers

3 votes

Answer:

B) 109

Explanation:

I took the test and got a 100%

answered
User Gravstar
by
7.9k points
4 votes

Answer:

(10 + 3i)(10 - 3i)=109

Explanation:


(10+3i)(10-3i)=(10^(2) -10*3i)+(3*10i-3*3i^2)\\ =100-30i+30i-9i^2\\=100-9*(-1)\\=100+9=109

answered
User Chemicalkt
by
8.1k points
← Prev Question Next Question →

Related questions

User Ruedi
asked Mar 12, 2022 134k views
Divide by rationalizing the denominator. 3+5i/10+3i A. 25+47i/109 B. 60-18i/109 C. 100-30i/109 D. 45+41i/109
Ruedi asked Mar 12, 2022
by Ruedi
8.7k points
1 answer
4 votes
134k views
User Yash Nag
asked Dec 19, 2017 69.6k views
10(4 - 3i ) = 1) 40-3i 2) 40-30i 3) 40+30i
Yash Nag asked Dec 19, 2017
by Yash Nag
7.7k points
2 answers
4 votes
69.6k views
Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!