Complete factorisation with special identities

Complete factorisation with special identities

Secondary 2

3 marks

TGM Original Questions

Factorise completely \(9p^4-81q^4\).[3]

Solution:

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Answer:\(9 \left(p^{2} - 3 q^{2}\right) \left(p^{2} + 3 q^{2}\right)\)

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