> 数学 >
x^2-y^2+x+5y-6因式分解
人气:296 ℃ 时间:2020-02-03 01:40:23
解答
原式=(x+y)(x-y)+3(x+y)-2x-2y-6
=(x+y)(x-y+3)-2(x-y+3)
=(x-y+3)(x+y-2)
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版