1\/x-1-1\/x-2=1\/x-3-1\/x-4
(x-1)(x-2)(x-3)(x-4)(x-3)(x-4)= (x-1)(x-2)x^2-7x+12 = x^2-3x+2 -4x = -10 x = 2.5 检验:当x=2.5时,x-1≠0、x-2≠0、x-3≠0、x-4≠0.∴x=2.5是原分式方程的解。(全手打,求楼主采纳!)
1\/x+1\/x-1+1\/x-2+1\/x-3+1\/x-4构成什么数列?
既不是等差,也不是等比
...2-1\/x-3的解为x=1; 方程1\/x-1\/x-1=1\/x-3-1\/x-4的解为x=2;_百度知...
x=1=(-1+3)\/2=(0+2)\/2;x=2=(1+3)\/2=(0+4)\/2;x=3=(1+5)\/2=(2+4)\/2。一般地,方程1\/(x-a)-1\/(x-b)=1\/(x-c)-1\/(x-d)(其中a+d=b+c)的解为x=(a+d)\/2=(b+c)\/2。解为x=-5的分式方程可以为1\/x-1\/(x+2)=1\/(x+8)-1\/(x+10)等。
解方程X-1分之X减X-2分之X-1=X-4分之X-3减X-5分之X-4
x\/(x-1)-(x-1)\/(x-2)=(x-3)\/(x-4)-(x-4)\/(x-5)x\/(x-1)+(x-4)\/(x-5)=(x-1)\/(x-2)+(x-3)\/(x-4)[x\/(x-1)-1]+[(x-4)\/(x-5)-1]=[(x-1)\/(x-2)-1]+[(x-3)\/(x-4)-1]1\/(x-1)+1\/(x-5)=1\/(x-2)+1\/(x-4)通分 (x-1+x-5)\/(...
...1\/x-2-1\/x-3的解为x=1 方程1\/x-1\/x-1=1\/x-3-1\/x-4的解为x=2_百度...
太难了
x-1之1减x-2分之1=x-3分之1减x-4分之1 求这个方程的简便解法!不是简便...
x-1之1减x-2分之1=x-3分之1减x-4分之11\/x-1 -1\/x-2=1\/x-3 -1\/x-41\/x-1 +1\/x-4=1\/x-3 +1\/x-2(x-4+x-1)\/(x-1)(x-4)=(x-2+x-3)\/(x-3)(x-2)(2x-5)\/(x^2-5x+4)=(2x-5)\/(x^2-5x+6)(2x-5)(x^2-5x+4)-(2x-5)(x^2-5x+6)=0(2x-...
1\/(x-1)+1\/(x-4)=1\/(x-2)+1\/(x-3)解方程
解:如图
一元一次方程的分式方程~~~急~!!!
经检验,x=2时分母为0,所以是增根,舍去 所以方程无解 2. 3\/x + 6\/x-1 = 5\/xˇ-x 3\/x+6\/(x-1)=5\/x(x-1)两边乘x(x-1)3(x-1)+6x=5 3x-3+6x=5 9x=8 x=8\/9 经检验,x=8\/9是方程的解 3. 1\/x-1 - 1\/x-2 - 1\/x-3 + 1\/x-4 = 0 1\/(x-1)+1\/(x...
化简1\/(x-1)(x-2)+1\/(x-2)(x-3)+1\/(x)-3)(x-4)+…+1\/(x-9)(x-_百度...
1/(x-1)(x-2)=1\/(x-1)-1\/(x-2),1/(x-2)(x-3)=1(x-2)-1\/(x-3),……1\/(x-9)(x-10)=1\/(x-9)-1\/(x-10)相加,右边合并一下就是1\/(x-1)-1\/(x-10),即最大的减去最小的 回答完毕 谢谢支持 ...
李聪在解分式方程1\/x-2 - 1\/x-4 =1\/x-3 - 1\/x-5 后
(1)第一个方程可以化简成1\/x-2 + 1\/x-5 =1\/x-3 + 1\/x-4,等式两边分母后面的数相加为7,为x=7\/2的分子 第二个方程可以化简成1\/x-7 + 1\/x-4 =1\/x-6 + 1\/x-5,等式两边分母后面的数相加为11,为x=11\/2的分子 所以方程1\/x-7 + 1\/x-1 = 1\/x-6 + 1\/x-2,等式两边...