2x^2=25 4(x-2)^2=92x^2=25 4(x-2)^2=9

来源：学生作业帮助网编辑：六六作业网时间：2024/12/25 03:12:29

2x^2=254(x-2)^2=92x^2=254(x-2)^2=92x^2=254(x-2)^2=92x^2=254(x-2)^2=92x^2=254(x-2)^2=92x^2=254(x-2)^2

2x^2=25 4(x-2)^2=92x^2=25 4(x-2)^2=9
2x^2=25 4(x-2)^2=9
2x^2=25 4(x-2)^2=9

2x^2=25 4(x-2)^2=92x^2=25 4(x-2)^2=9
2x^2=25
x^2=25 /2
x=±5/(根号2）
x=±5根号2/2
4(x-2)^2=9
(x-2)^2=9/4
x-2=±3/2
x=2±3/2
所以x=7/2或者x=1/2

2x^2=25
x^2=25 /2
x=±5/(根号2）
x=±5根号2/2

4(x-2)^2=9
(x-2)^2=9/4
x-2=±3/2
x=2±3/2
所以x=7/2或者x=1/2

x-2x+3x-4x+5x.+99x-100x=25求解一个“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+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 解方程:x-2x+3x-4x+...+99x-100x=25 解方程：x-2x+3x-4x+.+99x-100x=25 x-2x+3x-4x+...+99x-100x=25 f(x)=x^2+x (x (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 先化简,再求值：（x-2/x-x+2/x)/x-2/4x,x=2011 (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 2x+3x+4x+5x+x+6x+7x=100 x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1 x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=? X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4) x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002 x^2+2x-8/x^3+25x+x/(x-2/x-x+4/x+1,其中x=-4/5 x X 2x=25