If two sides of a triangle are represent...

If two sides of a triangle are represented by `x^2_7xy+6y^2=0` and the centroid is `(1,0)` then the equation of third side is

`2x+7y+3=0`

`2x-7y+3=0`

`2x+7y-3=0`

`2x-7y-3=0`

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