3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件
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3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件x≠-2
3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件
3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件
3/(x+2)=3(x-1)/{(x+2)(x-1)}成立的条件
x≠-2且x≠1
分母是(x+2)与(x-1),且分母不能为零,故x≠-2且x≠1
x≠-2或1 在此之外的任意实数
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(X+1)X(X+2)X(X+3)=504
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.
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-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
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X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
f(x-1)=x^2-2x+3(x
x(x+2)-(x-1)(x+2)=3 怎莫做