化简|x+4|+2|x-2|
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/10 10:34:07
![化简|x+4|+2|x-2|](/uploads/image/z/15221755-19-5.jpg?t=%E5%8C%96%E7%AE%80%7Cx%2B4%7C%2B2%7Cx-2%7C)
x){3
mm
]"}lv68kjV$Aڀ9/go{iG۳u[eVDi{mu+`W51RI)XAzl`X-zwr
Ov=_ $M~OqȮu5XOH-xdΒM5Au @9
化简|x+4|+2|x-2|
化简|x+4|+2|x-2|
化简|x+4|+2|x-2|
(1)x
零点分段:1、x<=-4 原式=-3x; 2、 -4
当x小于等于2时,
|x+4|+2|x-2|=x+4+2[-(x-2)]=x+4-2x+4=8-x
当x大于2时,
|x+4|+2|x-2|=x+4+2x-4=3x
化简:[(x+2)/x-(x-1)/(x-2)]/[(x-4)/(x^2-4x+4)]
[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简
化简:x-2x+3x-4x+5x-.+2011x-2002x
化简:X-2X+3X-4X+5X-……+2001x-2002x
(x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
(x/x-2-x/x+2)/4x/x-2
化简:(x-1)(x+2)(x-3)(x+4)+24
化简 (x+1)(x+2)(x+3)(x+4)-8
化简9x-{4x-[5x-(8x-2)]}
化简 [(x+2)/(x^2-2x)-(x-1)/(x^2-4x+4)]/[(x-4)/x]要求要过程.
化简[(x+2)/(x²-2x)+(x-1)/(x²-4x+4)]除以(x-4)/x
化简:x平方-x-2/x平方-x-6除以x平方+4x-5/x平方+2x-10
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+1/(x+3)(x+4)
化简1/[x(x+2)]+1/[(x+1)(x+3)]+1/[(X+2)(X+4)].+1/[(X+9)(X+11)]
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做