Question 3 (i) - Algebra Identities - Identity II - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at April 16, 2024 by

Ex 9.5, 3 - Find the squares by using identities (i) (b - 7)^2

 

 

 

 

Transcript

Question 3 Find the following squares by using the identities. (i) (𝑏−7)^2 (𝑏−7)^2 (𝑥−𝑦)^2=𝑥^2+𝑦^2−2𝑥𝑦 Putting 𝑥 = 𝑏 & 𝑦 = 7 = (𝑏)^2+(7)^2−2(𝑏)(7) = 𝑏^2+49−(2×7)×𝑏 = 𝒃^𝟐+𝟒𝟗−𝟏𝟒𝒃

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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.