分式加减计算题X+2 X^2-2X+1 2X-6---X-------- - ---- X-1 X^2-X-6 X^2-

来源：学生作业帮编辑：作业帮分类：数学作业时间：2024/10/03 00:36:40

分式加减计算题
X+2 X^2-2X+1 2X-6
---X-------- - ----
X-1 X^2-X-6 X^2-9
X^2-1 1
----- + X(1+ - )
X-1 X 其中X=(根号2) - 1

[(x+2)/(x-1)]*[(x^2-2x+1)/(x^2-x-6)]-(2x-6)/(x^2-9)
=[(x+2)/(x-1)]*[(x-1)^2/(x-3)(x+2)]-2(x-3)/(x+3)(x-3)
=(x+2)(x-1)^2/[(x-1)(x-3)(x+2)]-2/(x+3)
=(x-1)/(x-3)-2/(x+3)
=[(x-1)(x+3)-2(x-3)]/(x+3)(x-3)
=(x^2+2x-3-2x+6)/(x+3)(x-3)
=(x^2+3)/(x+3)(x-3)
(x^2-1)/(x-1)+x(1+1/x)
=(x+1)(x-1)/(x-1)+x+1
=x+1+x+1
=2x+2
=2根号2-2+2
=2根号2

分式加减计算题X+2 X^2-2X+1 2X-6---X-------- - ---- X-1 X^2-X-6 X^2- 一道分式计算题.1/x(x+!)+1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x=3)(x+4)有了马上分式计算题:(x+2/x+1) - (x+3/x-2) - (x-4/x-3) + (x-5/x-4) 谢谢（括号内是一分式的计算题,能做几题做几题!1.1/(x^2+3x+2)+1/(x^2+5x+6)+1/(x^2+4x+3)2.[a/ 分式加减计算题1.7y分之12x除以8x的平方Y2.x平方-1分之x的平方-2x+1除以x的平方+x分之x-13.a分之分式通分:x+1/3x,x/2x+6,x-1/x^2-9 x/(x-2)+(x+1)/(x-6)=2x/(x-3) 解分式方程 x-1\x-2+x-6\x-7=x-2\x-3+x-5\x-6 分式方程分式方程.x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6) 分式的加减：x+1分之1乘(x的平方+6x+9分之x-3+3+x分之2)-x的平方-9分之x 分式加减1/1-x-1/1+x-2x/1+x+-4x三次/1+x四次【数学】分式计算题（08,成都）2(2-1/x)+[x/(x^2-2x)]·(x^3-4)^就是乘方,例如x^2就表示x