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If 4a^2+9b^2-c^2+12ab= 0 then the family...

If `4a^2+9b^2-c^2+12ab= 0` then the family of straight lines `ax + by +c=0` is concurrent at :
(A) `(-3,2) or (2,3)`
(B) `(-2,3) or (2,-3)`
(C) `(3,2) or (-3,-2)`
(D) `(2,3) or (-2,-3)`

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