计算:(21x4y3-35x3y2+7x2y2)÷(-7x2y).
问题描述:
计算:(21x4y3-35x3y2+7x2y2)÷(-7x2y).
答
(21x4y3-35x3y2+7x2y2)÷(-7x2y)=-3x2y2+5xy-y.
计算:(21x4y3-35x3y2+7x2y2)÷(-7x2y).
(21x4y3-35x3y2+7x2y2)÷(-7x2y)=-3x2y2+5xy-y.