If \left| {\matrix{
{x - 4} & {2x} & {2x} \cr
{2x} & {x - 4} & {2x} \cr
{2x} & {2x} & {x - 4} \cr
} } \right| = \left( {A + Bx} \right){\left( {x - A} \right)^2}
then the ordered pair (A, B) is equal to :
JEE Main 2018 · Session, Shift 1 · Q4445