3(x-1)+1>5x-2(1-x),5-(2x-1)
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3(x-1)+1>5x-2(1-x),5-(2x-1)
![3(x-1)+1>5x-2(1-x),5-(2x-1)](/uploads/image/z/8114871-39-1.jpg?t=3%28x-1%29%2B1%3E5x-2%281-x%29%2C5-%282x-1%29)
3(x-1)+1>5x-2(1-x)
3x-3+1>5x-2+2x
3x-2>7x-2
0>7x-3x
x<0
5-(2x-1)<-6x
5-2x+1<-6x
6<2x-6x
6<-4x
x>-3/2
解集是-3/2<x<0
![](http://img.wesiedu.com/upload/5/84/58448e081c7cda3620df12a32f07b803.jpg)
3x-3+1>5x-2+2x
3x-2>7x-2
0>7x-3x
x<0
5-(2x-1)<-6x
5-2x+1<-6x
6<2x-6x
6<-4x
x>-3/2
解集是-3/2<x<0
![](http://img.wesiedu.com/upload/5/84/58448e081c7cda3620df12a32f07b803.jpg)
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
5x(3x-2)-(x+1)
(X-1)^3(x-2)(x-3)^2(x-5)
1/(x+3)-(x-2)/(x^2-5x+6)
(2x-1)/(x-1)(x-2)=(x-5)/(x-2)(x-3) x/2x^2-11x-21=(x+7)/x^2-1
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
(3-x)/(1-x)-(5-x)/(7-x)+(x^2-x)/(x^2-8x+7)=1