Complete factorisation with special identities

Complete factorisation with special identities

Secondary 2

3 marks

TGM Original Questions

Factorise completely \(\left(a+\frac13b \right)^2-\frac{16}{9}b^2\).[3]

Solution:

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Answer:\(\dfrac{\left(a - b\right) \left(3 a + 5 b\right)}{3}\)

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