5x3y2与一个多项式的积为20x5y2﹣15x3y4+70(x2y3)2,则这
题型:选择题
问题:
5x3y2与一个多项式的积为20x5y2﹣15x3y4+70(x2y3)2,则这个多项式为[ ]
A.4x2﹣3y2
B.4x2y﹣3xy2
C.4x2﹣3y2+14xy4
D.4x2﹣3y2+7xy3
5x3y2与一个多项式的积为20x5y2﹣15x3y4+70(x2y3)2,则这个多项式为[ ]
A.4x2﹣3y2
B.4x2y﹣3xy2
C.4x2﹣3y2+14xy4
D.4x2﹣3y2+7xy3