Check sibling questions

Ex 14.2, 1 (iv) - Factorise 49y^2 + 84yz + 36z^2 - Ex 14.2

This video is only available for Teachoo black users

Get live Maths 1-on-1 Classs - Class 6 to 12


Transcript

Ex 14.2, 1 Factorise the following expressions. (iv) 49๐‘ฆ^2 + 84yz + 36๐‘ง^2 49๐‘ฆ^2 + 84yz + 36๐‘ง^2 = ใ€–(7๐‘ฆ)ใ€—^2+84๐‘ฆ๐‘ง+ใ€–(6๐‘ง)ใ€—^2 = ใ€–(7๐‘ฆ)ใ€—^2+ 2ร—7๐‘ฆร—6๐‘ง+ใ€–(6๐‘ง)ใ€—^2 = ใ€–(7๐‘ฆ)ใ€—^2+ ใ€–(6๐‘ง)ใ€—^2+ 2ร—7๐‘ฆร—6๐‘ง Using (๐‘Ž+๐‘^2 )=๐‘Ž^2+๐‘^2+2๐‘Ž๐‘ Here, ๐‘Ž = 7y and b = 6z = ใ€–(๐Ÿ•๐’š+๐Ÿ”๐’›)ใ€—^๐Ÿ

Ask a doubt
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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.