作业帮x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/04/24 04:05:34
x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9
(x-10+2)/(x-10)+(x-6+2)/(x-6)=(x-7+2)/(x-7)+(x-9+2)/(x-9)
1+2/(x-10)+1+2/(x-6)=1+2/(x-7)+1+2/(x-9)
1/(x-10)+1/(x-6)=1/(x-7)+1/(x-9)
(x-6+x-10)/(x-10)(x-6)=(x-9+x-7)/(x-7)(x-9)
(2x-16)/(x^2-16x+60)=(2x-16)/(x^2-16x+63)
(2x-16)[1/(x^2-16x+60)-1/(x^2-16x+63)]=0
因为
x^2-16x+60不等于x^2-16x+63
所以1/(x^2-16x+60)-1/(x^2-16x+63)不等于0
所以2x-16=0
x=8
分式方程要检验
经检验,x=8是方程的解
1+2/(x-10)+1+2/(x-6)=1+2/(x-7)+1+2/(x-9)
1/(x-10)+1/(x-6)=1/(x-7)+1/(x-9)
(x-6+x-10)/(x-10)(x-6)=(x-9+x-7)/(x-7)(x-9)
(2x-16)/(x^2-16x+60)=(2x-16)/(x^2-16x+63)
(2x-16)[1/(x^2-16x+60)-1/(x^2-16x+63)]=0
因为
x^2-16x+60不等于x^2-16x+63
所以1/(x^2-16x+60)-1/(x^2-16x+63)不等于0
所以2x-16=0
x=8
分式方程要检验
经检验,x=8是方程的解
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
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),
x-4/x-6+x-8/x-10=x-5/x-7+x-7/x-9
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
(x+7/x+6)+ (x+9/+x+8)=(x+10/x+9)+(x+6/x+5)
1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6；
⒈ 解方程 (X+7)/(X+6)+(X+9)/(X+8)=(X+10)/(X+9)+(X+6)/(X+5)