Algebra Identities and Formulas

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Chapter 8 Class 8 Algebraic Expressions and Identities
Serial order wise

Ex 9.5, 4 - Simplify (i) (a^2 - b^2)^2 (ii) (2x + 5)^2 - (2x - 5)^2

 

 

 


Transcript

Question 4 Simplify. (i) (𝑎^2−𝑏^2 )^2 (𝑎^2−𝑏^2 )^2 (𝑥−𝑦)^2=𝑥^2+𝑦^2−2𝑥𝑦 Putting 𝑥 = 𝑎^2 & 𝑦 = 𝑏^2 = (𝑎^2 )^2+(𝑏^2 )^2−2(𝑎^2 )(𝑏^2 ) = 𝑎^(2 × 2)+𝑏^(2 × 2)−2𝑎^2 𝑏^2 = 𝒂^𝟒+𝒃^𝟒−𝟐𝒂^𝟐 𝒃^𝟐

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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, Social Science, Physics, Chemistry, Computer Science at Teachoo.