Using the identity. (a - b) ²= (a² - 2ab + b²), evaluate 699²

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

Sivi asked Sep 9, 2022

533,659 views

32 votes

Using the identity. (a - b) ²= (a² - 2ab + b²), evaluate 699²

Mathematics
college

Sivi asked Sep 9, 2022

by Sivi

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

26 votes

$\\ \sf\longmapsto 699^2$

$\\ \sf\longmapsto (700-1)^2$

$\\ \sf\longmapsto 700^2-2(700(1)+(1)^2$

$\\ \sf\longmapsto 490000-1400+1$

$\\ \sf\longmapsto 488600+1$

$\\ \sf\longmapsto 488601$

Joseph Larson answered Sep 10, 2022

by Joseph Larson

3.1k 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.

4 votes

Explanation:

hope it helps you.......

Using the identity. (a - b) ²= (a² - 2ab + b²), evaluate 699²-example-1

PollusB answered Sep 14, 2022

by PollusB

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.

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