通分:x/x²-1,2/x²-2x+1
人气:397 ℃ 时间:2020-05-01 12:16:49
解答
x/x²-1=x/(x+1)(x-1)=x(x-1)/(x+1)(x-1)²
2/(x²-2x+1)=2/(x-1)²=2(x+1)/(x+1)(x-1)²
推荐
- 通分1/x(x-1),x/x²-1,2/x²-2x+1
- 通分; 1/x²+1,-1/x²+2x+1
- 通分:1.1/x²+2x+1,x²-1,1/x²-2x+1 2.a/a+b,b/a-b
- 通分x/2x+2,1/x²+x,1/x²-1
- 通分x²-4分之1,4-2x分之1,x²+4x+4分之1
- Mr wang came into the office without __the door A knock B knocking at C to knock at D knocking to
- 比如有100道选择题~
- 以生活风雨为话题的作文 不少于600字
猜你喜欢