Question

Factorise 8a3

-b

3

-12a2

b+6ab2​

Answer 1

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8a3 - b3 - 12a2b - 6ab2

= (-2a)3 - (b)3 - 3(-2a)2*b + 3(-2a)*b

By Using Identity ( a - b )³

We get,

= ( - 2a - b )³