Ex 12.3, 5 (vi) - Chapter 12 Class 8 Factorisation
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
Ex 12.3, 5 Factorise the expressions and divide them as directed. (vi) 12xy(9๐ฅ^2 โ 16๐ฆ^2) รท 4xy(3x + 4y)We first factorise 12xy (ใ9๐ฅใ^2โ16๐ฆ^2) = 12xy [(ใ3๐ฅใ^2) โ (ใ4๐ฆใ^2)] Using ๐^๐ โ ๐^๐ = (a + b) (a โ b) Here ๐= 3x and b = 4y = 12xy (3x + 4y) (3x โ 4) Dividing 12xy (ใ9๐ฅใ^2โ16๐ฆ^2) รท 4xy (3x + 4y) = (12๐ฅ๐ฆ (9๐ฅ^2 โ 16๐ฆ^2))/(4๐ฅ๐ฆ (3๐ฅ + 4๐ฆ)) = (๐๐๐๐ (๐๐ + ๐๐) (๐๐ โ ๐๐))/(๐๐๐ (๐๐ + ๐๐)) = 12/4 ร ๐ฅ๐ฆ/๐ฅ๐ฆ ร ((3๐ฅ + 4๐ฆ))/((3๐ฅ + 4๐ฆ)) ร (3x โ 4y) = 3 (3x โ 4y)
Ex 12.3
Ex 12.3, 1 (ii) Important
Ex 12.3, 1 (iii)
Ex 12.3, 1 (iv) Important
Ex 12.3, 1 (v)
Ex 12.3, 2 (i)
Ex 12.3, 2 (ii) Important
Ex 12.3, 2 (iii) Important
Ex 12.3, 2 (iv)
Ex 12.3, 2 (v) Important
Ex 12.3, 3 (i)
Ex 12.3, 3 (ii)
Ex 12.3, 3 (iii) Important
Ex 12.3, 3 (iv)
Ex 12.3, 3 (v) Important
Ex 12.3, 4 (i)
Ex 12.3, 4 (ii) Important
Ex 12.3, 4 (iii)
Ex 12.3, 4 (iv)
Ex 12.3, 4 (v) Important
Ex 12.3, 5 (i)
Ex 12.3, 5 (ii) Important
Ex 12.3, 5 (iii)
Ex 12.3, 5 (iv) Important
Ex 12.3, 5 (v)
Ex 12.3, 5 (vi) You are here
Ex 12.3, 5 (vii) Important
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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