原式=x5+y5-x4y-xy4
=（x5-x4y）+（y5-xy4） 这步可省略
=x4（x-y）+y4（y-x）
=x4（x-y）-y4（x-y）
=（x-y）（x4-y4)
=（x-y）（x2-y2）（x2+y2）
=（x-y)(x2+y2)(x+y)(x-y)
OK了,我写的比较详细,你可以按自己的想法省略一部分~
猜你喜欢
- 1policeman,busy,work(造句)
- 2X²=25,X²-81=0,4X²=49,25X²-36=0 X分别为什么?
- 3Great acts are made up of small deeds请高手写一篇100字左右的英语作文~
- 4五个连续奇数的和是945,这四个数中最小的是( ),最大的是（ ）.
- 5You can put the coat [ ] there A.on B.at C.in D./选哪一个
- 6People of d______ ages空格怎么填
- 7Some of the students are sweeping the floor,__are cleaning windows.A others B the others
- 8the earse was passed ---one student-- another,by to行么?
- 9来对对子!
- 10choose a city you like about the weather with your partner.