If x =root 7+root5 and y=root7-root5 find xy

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

Almas Adilbek asked Aug 12, 2022

26,424 views

41 votes

If x =root 7+root5 and y=root7-root5 find xy

Mathematics
college

Almas Adilbek asked Aug 12, 2022

by Almas Adilbek

3.0k points

0 Comments

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Your answer

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

2 Answers

21 votes

final answer will be 2 because √a×√a= a

If x =root 7+root5 and y=root7-root5 find xy-example-1

Anouar Fadili answered Aug 12, 2022

by Anouar Fadili

2.5k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

18 votes

Explanation:

x=√7+√5, y=√7-√5

therefore, xy = (√7+√5)(√7-√5) = 7-5 = 2.

Hope this helps you.

Puchacz answered Aug 18, 2022

by Puchacz

3.4k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Ask a Question

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

1.6m questions

2.0m answers

0 Comments

Your comment on this question:

Your answer

2 Answers

0 Comments

Your comment on this answer:

0 Comments

Your comment on this answer:

Other Questions