If the expression x^(2) +2(a+b+c) x+3(bc...

If the expression `x^(2) +2(a+b+c) x+3(bc+ca+ab)` is
perfect square, then

A

a=b=c

B

`a =+- b = +- c`

C

`a= b ne c`

D

None of these

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Verified by Experts

The correct Answer is:

A

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