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CHAPTER AT A GLANCE
Exploring Algebraic Identities
•Unit: Algebra
•Board weightage: Algebra carries a large share of the paper; identities and factorisation give regular 2-mark and 3-mark questions (please check the latest sample paper)
•Identities in this chapter: (a ± b)², (a + b + c)², a² − b², (x + a)(x + b), (a ± b)³, a³ − b³, a³ + b³, a³ + b³ + c³ − 3abc
•Most scoring part: expansion, factorisation and finding values using identities
•Time to revise: about 60 minutes
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