x^2y(a-b)^2n+xy^2(b-a)^2n+1因式分解

x��)���3��H�MҌ3�Ӯ��3�H�Ms��^�tO�ӎ���$��V��Ά4���� �"k�k
s4@z4� m+� �+t!�Xt �L�ve���~qAb��A�Wj