Ex 12.3, 5 (v) - Chapter 12 Class 8 Factorisation

Last updated at Dec. 16, 2024 by

Slide39.JPG

Slide40.JPG

Go Ad-free

Transcript

Ex 12.3, 5 Factorise the expressions and divide them as directed. (v) 5pq(๐‘^2 โ€“ ๐‘ž^2) รท 2p(p + q)We first factorise 5pq (๐‘^2โˆ’๐‘ž^2 ) Using ๐’‚^๐Ÿ โˆ’ ๐’ƒ^๐Ÿ = (a + b) (a โˆ’ b) Here ๐‘Ž= p and b = q = 5pq (p + q) (p โˆ’ q) Dividing 5pq (๐‘^2โˆ’๐‘ž^2 )รท2๐‘ (๐‘+๐‘ž) = (5๐‘๐‘ž (๐‘^2 โˆ’ ๐‘ž^2))/(2๐‘ (๐‘ + ๐‘ž)) = (๐Ÿ“๐’‘๐’’ (๐’‘ + ๐’’) (๐’‘ โˆ’ ๐’’))/(๐Ÿ๐’‘ (๐’‘ + ๐’’)) = 5/2 ร— ๐‘/๐‘ ร— q ร— ((๐‘ + ๐‘ž))/((๐‘ + ๐‘ž)) ร— (p โˆ’ q) = 5/2 ร— q ร— (p โˆ’ q) = ๐Ÿ“/๐Ÿ q (p โˆ’ q)

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