化简|4x-3|-2=3x+4
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/26 10:15:55
xJ@_% HCئɆy=$e=bADDڂ" ->M6WpIKI]XgYrOͰ0zvav.|ڨA<ں[
Fji6 5/siFiZŜ_/UdtY2Jv/h
b7װѺ0Ra~8p+{
化简|4x-3|-2=3x+4
化简|4x-3|-2=3x+4
化简|4x-3|-2=3x+4
1)x>=3/4
4x-3-2=3x+4
x=9
2)x<3/4
3-4x-2=3x+4
x=-3/7
X=9 或X=负的七分之三
x=9或x=-3/7
1.X>=3/4时,4X-3-2=3X+4
X=9;
2.X<3/4时,3-4X-2=3X+4
7X=-3
X=-3/7
x=9或x=-3/7
|4x-3|=3x+6
两边平方
16x²-24x+9=9x²+36x+36
7x²-60x-27=0
(x-9)(7x+3)=0
x=9 或者 x=-3/7
碰到绝对值可以考虑平方
所以16x^2-24x+9=9x^2+36x+36
7x^2-60x-27=0
x=9 或者 x=-3/7
化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4
*-----------------------------------------------*| 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 ||
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
[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-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
x^2-3x=x-4
4x-2(x-3)=x
x(x-4)=-3 x^2