Ex 8.4, 2 (ii) - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at December 16, 2024 by

Ex 8.4, 2 (ii) - Find (x + 7y) (7x - y) - Chapter 9 Class 8 - Ex 8.4

Remove Ads Share on WhatsApp

Transcript

Ex 8.4, 2 Find the product. (ii) (š‘„+7š‘¦) (7š‘„āˆ’š‘¦) (š‘„+7š‘¦) (7š‘„āˆ’š‘¦) = š‘„(7š‘„āˆ’š‘¦)+7š‘¦(7š‘„āˆ’š‘¦) = (š’™ Ɨ šŸ•š’™)āˆ’(š’™ Ɨ š’š)+(šŸ•š’š Ɨ šŸ•š’™)āˆ’(šŸ•š’š Ɨ š’š) = 7š‘„^2āˆ’š‘„š‘¦+49š‘¦š‘„āˆ’7š‘¦^2 = šŸ•š’™^šŸ+šŸ’šŸ–š’™š’šāˆ’šŸ•š’š^šŸ

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo