> 数学 >
X的平方乘(x-y)+(y-x)
人气:125 ℃ 时间:2020-08-26 04:29:30
解答
x^2*(x-y)+(y-x)
=x^2*(x-y)-(x-y)
=(x-y)(x^2-1)
=(x-y)(x+1)(x-1)
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版