Which expression is equivalent to \g\acA2B\g \ac{A^2}{B}\g\acA2B?
2\gA−\gB2\g A - \g B2\gA−\gB
2(\gA−\gB)2(\g A - \g B)2(\gA−\gB)
\g2A−\gB\g 2A - \g B\g2A−\gB
2\gA+\gB2\g A + \g B2\gA+\gB