> 数学 >
1-x²+2xy-y²
x²-y²+x-y
麻烦用因式分解解
人气:156 ℃ 时间:2020-06-02 07:24:10
解答
1-x²+2xy-y²=1-(x-y)²=(1-x+y)(1+x-y)
x²-y²+x-y=(x-y)(x+y)+(x-y)=(x-y)(x+y+1)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版