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Q1 of 41 Page 32

Factorise :
y³ – 27

We know that

on comparison with above, we get

a = y, b = 3

Note: Must memorize cubes upto 12

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Questions · 41

6. Factorisation of Algebraic Expressions

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 1 1 1

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