求4道初一数学题!急!必好评!
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/28 22:35:17
求4道初一数学题!急!必好评!
![求4道初一数学题!急!必好评!](/uploads/image/z/6301526-14-6.jpg?t=%E6%B1%824%E9%81%93%E5%88%9D%E4%B8%80%E6%95%B0%E5%AD%A6%E9%A2%98%21%E6%80%A5%21%E5%BF%85%E5%A5%BD%E8%AF%84%21)
(4)=(x-5y-8)(x-5y+1)
(2)=2(x+y+1)(x+y+2)
(4)=(x²+2x-3)(x²+2x-8)=(x+3)(x-1)(x+4)(x-2)
![](http://img.wesiedu.com/upload/6/16/616fb953849efdd0023258a9e5d64fb9.jpg)
(2)=2(x+y+1)(x+y+2)
(4)=(x²+2x-3)(x²+2x-8)=(x+3)(x-1)(x+4)(x-2)
![](http://img.wesiedu.com/upload/6/16/616fb953849efdd0023258a9e5d64fb9.jpg)