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NCERT Exemplar Solutions Class 8 Mathematics Solutions for Algebraic Expressions and Identities & Factorisation - Exercise in Chapter 7 - Algebraic Expressions and Identities & Factorisation

Question 39 Algebraic Expressions and Identities & Factorisation - Exercise

(a – b)^2 + ____________ = a^2 – b^2

Answer:

(a – b)^2 + (2ab – 2b^2) = a^2 – b^2

= (a – b)^2 + (2ab – 2b^2)

= a^2 + b^2 – 2ab + 2ab – 2b^2

= a^2 – b^2

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