3X(x^2-2x-1)-2x^2(x-3)=多少
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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*x-6x-9)-x(x*x-8x-15)+2x(3-x)
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
|x+1|-|x|+|x-2|-|-x+3|已知x+2
求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X
x{x+1}{x-1}}x-2}{x-3}-40
x^5-x^4+x^3-x^2+x-1
(X+1)X(X+2)X(X+3)=504
分解因式----(X*X-X)(X*X-X-2)+1
化简 3x(x^2-x-1)-(x+1)(3x^-x) X^3(x-y)+x(y-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(x-2)(x-3)
{x|(x+3)(x-2)
-x^3+x^2-x
】x(x+1)+x^2(x-1)
x×x+3x-9/ x+2