解方程1/(x^3+3x+2)+1/(x^3+5x+6)+1/(x^3+7x+12)=1/(x+4)

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：2024/08/17 23:17:29

解方程1/(x^3+3x+2)+1/(x^3+5x+6)+1/(x^3+7x+12)=1/(x+4)
早上就要,

1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)=1/(x+4)
1/(x+1)-1/(x+2)+1/(x+2)-1/(x+3)+1/(x+3)-1/(x+4)=1/(x+4)
1/(x+1)-1/(x+4)=1/(x+4)
1/(x+1)=2/(x+4)
2(x+1)=x+4
2x+1=x+4
2x-x=4-1
x=3
经检验,x=3是原方程的解

解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3 解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6) 解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7) 解方程：x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6 解方程：2x+4x+6x...+100x=1-(x+3x+5x+...+99x) 解方程 x(2x-4)+3x(x-1)=5x(x-3)+8 x-1\x-2+x-6\x-7=x-2\x-3+x-5\x-6 分式方程方程(x-1/x-2)-(x-3/x-4)=(x-2/x-3)-(x-4/x-5)解为x=7/2,(1/x-7)-(1/ 解分式方程：x-3/x-1-x-4/x-2=x-5/x-3-x-6 解方程1/(x+x﹚+1/(x+3x+2﹚+1/(x+5x+6﹚+1/(x+7x+12﹚=4/21得 |X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10| 解方程：(4/x-2)+(x-1/x-5x+6)+(2/3-x)=0