Ex 12.2, 4 (i) - Chapter 12 Class 8 Factorisation

Last updated at July 25, 2026 by

Ex 12.2, 4 (i) - Factorise a^4 - b^4 - Chapter 14 Class 8 NCERT - Ex 12.2

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Ex 12.2, 4 Factorise. (i) š‘Ž^4 ā€“ š‘^4š‘Ž^4 ā€“ š‘^4 = (š‘Ž^2 )^2 āˆ’ (š‘^2 )^2 Using š’™^šŸ āˆ’ š’š^šŸ = (x + y) (x āˆ’ y) Here š‘„=š‘Ž^2 and y = š‘^2 = (š‘Ž^2+š‘^2 ) (š‘Ž^2 āˆ’ b^2) Using š’™^šŸ āˆ’ š’š^šŸ = (x + y) (x āˆ’ y) Here š‘„=š‘Ž and y = š‘ = (š‘Ž^2+š‘^2 ) (š‘Ž+š‘) (š‘Ž āˆ’ b) = (š’‚ āˆ’ š’ƒ) (š’‚+š’ƒ) (š’‚^šŸāˆ’ š’ƒ^šŸ)

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