Question
Sun July 31, 2011 By:
 

(1)factorize the follow a2+b2+2ab+2bc+2ca

Expert Reply
Sun July 31, 2011
The given expression can be factorised as follows:
a2 + b2 + 2ab + 2bc + 2ca
= (a + b)2 + 2c (b + a)   [Using the identity (a + b)2 = a2 + b2 + 2ab]
= (a + b) (a + b + 2c)
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