x sq.+y sq.+2(xy+yz+zx)

Asked by Sukhad Sahu | 27th May, 2013, 02:53: PM

Expert Answer:

If the question is to factorise the given expression, then the answer is as follows:
 
 
x2 + y2 +2(xy+yz+zx)
= x2 + y2 + 2xy + 2yz + 2zx
= (x + y)2 + 2z(x + y)
= (x + y)(x + y + 2z)

Answered by  | 27th May, 2013, 03:39: PM

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