问题
解答题
计算:(3x2y)•(-2xy)-(-2x2y3)2÷(-4xy4).
答案
(3x2y)•(-2xy)-(-2x2y3)2÷(-4xy4),
=(3x2y)•(-2xy)-4x4y6÷(-4xy4),
=-6x3y2+x3y2,
=-5x3y2.
计算:(3x2y)•(-2xy)-(-2x2y3)2÷(-4xy4).
(3x2y)•(-2xy)-(-2x2y3)2÷(-4xy4),
=(3x2y)•(-2xy)-4x4y6÷(-4xy4),
=-6x3y2+x3y2,
=-5x3y2.