Question 2 (vii) - Algebra Identities and Formulas - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at April 16, 2024 by Teachoo
Algebra Identities and Formulas
Question 1 (i)
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Transcript
Question 2 Use the identity (๐ฅ+๐)(๐ฅ+๐)=๐ฅ^2+(๐+๐)๐ฅ+๐๐ to find the following products. (vii) (๐ฅ๐ฆ๐งโ4) (๐ฅ๐ฆ๐งโ2) (๐ฅ๐ฆ๐งโ4) (๐ฅ๐ฆ๐งโ2) = (๐ฅ๐ฆ๐ง+(โ4)) (๐ฅ๐ฆ๐ง+(โ2)) (๐ก+๐)(๐ก+๐)=๐ก^2+(๐+๐)๐ก+๐๐ Putting ๐ก = ๐ฅ๐ฆ๐ง , ๐ = โ4 & ๐ = โ2 = (๐)^2+(7)^2โ2(๐)(7) = ๐^2+49โ(2ร7)ร๐ = ๐^๐+๐๐โ๐๐๐
