(x+3)(x-3)-(x+3)ˇ2 (xy+z)(-xy+z) (x+2y-1)(x-2y+1)是(x+3)(x-3)-(x+3)ˇ2 (x+2y-1)(x-2y+1)(xy+z)(-xy+z)这样的
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/16 14:51:08
(x+3)(x-3)-(x+3)ˇ2(xy+z)(-xy+z)(x+2y-1)(x-2y+1)是(x+3)(x-3)-(x+3)ˇ2(x+2y-1)(x-2y+1)(xy+z)(-xy+z)这样的(x
(x+3)(x-3)-(x+3)ˇ2 (xy+z)(-xy+z) (x+2y-1)(x-2y+1)是(x+3)(x-3)-(x+3)ˇ2 (x+2y-1)(x-2y+1)(xy+z)(-xy+z)这样的
(x+3)(x-3)-(x+3)ˇ2 (xy+z)(-xy+z) (x+2y-1)(x-2y+1)
是(x+3)(x-3)-(x+3)ˇ2
(x+2y-1)(x-2y+1)
(xy+z)(-xy+z)这样的
(x+3)(x-3)-(x+3)ˇ2 (xy+z)(-xy+z) (x+2y-1)(x-2y+1)是(x+3)(x-3)-(x+3)ˇ2 (x+2y-1)(x-2y+1)(xy+z)(-xy+z)这样的
(x+3)(x-3)-(x+3)ˇ2
=x²-9-(x²+6x+9)
=-6x-18
(xy+z)(-xy+z)
=z²-(xy)²
=z²-x²y²
(x+2y-1)(x-2y+1)
=x²-(2y-1)²
=x²-4y²+4y-1
(x+3)(x-3)-(x+3)ˇ2=(x²-9)-(x²+6x+9)=-6x-18
(x+2y-1)(x-2y+1)=(x+2y-1)［x-(2y-1)］=x²-(2y-1)²
(xy+z)(-xy+z）=-(xy+z)(xy-z）=-x²y²-z²
*-----------------------------------------------*| 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.
x(x-2)(x-3)
{x|(x+3)(x-2)
-x^3+x^2-x
(x*x-3)*(x*x-3)-x*(x*x-3)-2x*x 因式分解
x×x+3x-9/ x+2
x+2x+3x+.+100x
x^2-3x
|X+3|+|X-2|
|x+3|+|x-2|
3x-2x
|x-2|-|x-3|
|x+3|+|x-2|
x^(-2)-x^(-3)
|x+3|+|x-2|