(x-y)³除以(y-x)

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/30 02:58:30

(x-y)³除以(y-x)
(x-y)³除以(y-x)

(x-y)³除以(y-x)

(x-y)³÷(y-x)
=[-(y-x)]³÷(y-x)
=-(y-x)²