1.

Factorise : 6a2 - 3a2b - bc2 + 2c2 

Answer»

6a2 - 3a2b - bc2 + 2c2 

= 6a2 - 3a2b + 2c2 - bc2 

= 3a2(2-b) + c2(2-b)

= (2-b) (3a2 + c2)



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