X^2+1/(X^2)+1/X+X=0
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X^2+1/(X^2)+1/X+X=0
X^2+1/(X^2)+1/X+X=0
X^2+1/(X^2)+1/X+X=0
等式两边乘以x^2
x^4+1+x+x^3=0
x(x^3+1)+x^3+1=0
(x^3+1)(x+1)=0
x=-1
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)-2x·x-x-2x+1=0求x的值,
如果X*X--1=0,那么X*X*X+2*X*X+2008=几?
已知x*x+x-1=0 求x*x*x-2x+11=?
已知x*x+x-1=0求x*x*x-2x+2010的值
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
先化简再求值(x-1/x-x-2/x+1)/(2x²-x/x²+2x+1)且x²-x-1 =0
(X-3分之x-1-x分之x-4)除以x的平方+3x分之(x+3)(x-2),其中(x-1)(x-2)=0
f(x)=(x+1)ln(x+1)+m(x^2+2x) x>=0时,f(x)
*-----------------------------------------------*| 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-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x平方-x+2=2x/x+1
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
(X+1)X(X+2)X(X+3)=504
x/x-1-2x-2/x-1=0
6/(x-1)-(x+2)/x(x-1)=0