4x-1/(x+2)(x-1)=A/x+2 + x/x-1 则A等于 (A跟x的关系,)我要具体的过程 ,我只知道4x-1=m(x-1)+x(x+2)接下来怎么办
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4x-1/(x+2)(x-1)=A/x+2+x/x-1则A等于(A跟x的关系,)我要具体的过程,我只知道4x-1=m(x-1)+x(x+2)接下来怎么办4x-1/(x+2)(x-1)=A/x+2+x/
4x-1/(x+2)(x-1)=A/x+2 + x/x-1 则A等于 (A跟x的关系,)我要具体的过程 ,我只知道4x-1=m(x-1)+x(x+2)接下来怎么办
4x-1/(x+2)(x-1)=A/x+2 + x/x-1 则A等于 (A跟x的关系,)
我要具体的过程 ,
我只知道4x-1=m(x-1)+x(x+2)接下来怎么办
4x-1/(x+2)(x-1)=A/x+2 + x/x-1 则A等于 (A跟x的关系,)我要具体的过程 ,我只知道4x-1=m(x-1)+x(x+2)接下来怎么办
(4x-1)/(x+2)(x-1)=A/(x+2)+x/(x-1)
(4x-1)=[A/(x+2)+x/(x-1)]*(x+2)(x-1)
(4x-1)=A(x-1)+x(x+2)
A(x-1)=(4x-1)-x(x+2)
A(x-1)=4x-1-x^2-2x
A(x-1)=-x^2+2x-1
A(x-1)=-(x-1)*(x-1)
A=-(x-1)
A=-x+1
a+x/x+1 ,x/x^2-2x-3 ,a/x^2+4x+3
*-----------------------------------------------*| 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 ||
已知集合A={x|(x-2)*(x+1)>0},B={x|4x+a
若f(x)={a'x(x>1),(4-a/2)x+2(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
4x+1/(x-2)(x-5)=a/x-2+b/x-5
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
(x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
4x-1/(x+2)(x-2)=A/x+2+x/x-1,则A=( )
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
已知f(x+1)=x²-2x,则f(x)= A.x²-4x+3 B.x²-4x C已知f(x+1)=x²-2x,则f(x)=A.x²-4x+3 B.x²-4x C.x²-2x+1 D.x²-2x
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=?
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4