化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)在线等```速度```不过过程要具体
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化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)在线等```速度```不过过程要具体化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)在线等`
化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)在线等```速度```不过过程要具体
化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)
在线等```速度```不过过程要具体
化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)在线等```速度```不过过程要具体
化简(x^2-2x-3)/(x^2+2x+1)÷(x^2-9)/(x^2+x)
=(x-3)(x+1)/(x+1)^2÷(x+3)(x-3)/x(x+1)
=(x-3)/(x+1)*x(x+1)/(x+3)(x-3)
=x/(x+3)
(x-3)(x+1)^2
_____________
x
300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容)思考分析:x x x
3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/(x-2)-x/(x+2)÷2x/(x²-4)化简
*-----------------------------------------------*| 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 ||
x(x*x-6x-9)-x(x*x-8x-15)+2x(3-x)
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式:X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X.
化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-x)
化简:x(2x+1)-x(x-3)
x(x-2)(x-3)
{x|(x+3)(x-2)
-x^3+x^2-x
化简(x+2)(x的平方-6x-9)-(x-5)(x-3)x
x×x+3x-9/ x+2
x+2x+3x+.+100x
(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x 因式分解
[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:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x