> 数学 >
化简:(x²-2xy+y-1)÷(x-y-1)
人气:406 ℃ 时间:2020-05-26 06:20:41
解答
(x²-2xy+y²-1)÷(x-y-1)
=[(x-y)²-1]÷(x-y-1)
=(x-y-1)(x-y+1)÷(x-y-1)
=x-y+1
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版