46x(-1/2)/23

解不等式组:2x-1>x+1,x+81-x,x+21+2x,3x+21,2x-1>x+1,x+81-x,x+23解不等式组:2x-1>x+1,x+81-x,x+21+2x,3x+21,2x-1>x+1

(x-1)+(x+2)+0.2x+2x=46(x-1)+(x+2)+0.2x+2x=46(x-1)+(x+2)+0.2x+2x=46(x-1)+(x+2)+0.2x+2x=46x-1+x+2+0.2x

几道求未知数X的的题!-2x=46x=23x=-12-x=-24x=43x+14=-7x+13=5x+373-x=62x+3=3x三分之一x+二分之3=0二分之三-三分之x=负二分之一三分之二x-1=

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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：XXXXXXXXX1、XXXXXXXXXX.2、XXXXXXXXX.3、XXXXXXXXXXX.七年级下册政治复

matlab解决约束非线性规划问题myfun.mfunctionf=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)

matlab解决约束非线性规划问题myfun.mfunctionf=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)

分解因式----（X*X-X)(X*X-X-2)+1分解因式----（X*X-X)(X*X-X-2)+1分解因式----（X*X-X)(X*X-X-2)+1(x-x)(x-x-2)+1=x(x-1)[

（x^24x^23x^22……x）÷（x^8+1）×（x^3+x^2-x-1)÷（x-1)÷(x^4+1)求值（x^24+x^23+x^22+……+x+1)÷（x^8+1)×(x^3+x^2-x-1)

】x(x+1)+x^2(x-1)】x(x+1)+x^2(x-1)】x(x+1)+x^2(x-1)x(x+1)+x^2(x-1)=x^2+x+x^3-x^2=x+x^3

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1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x

x^2-23x+1分解因式x^2-23x+1分解因式x^2-23x+1分解因式x^2-23x+1=(x^2-23x+529/4)-525/4=(x-23/2)^2-525/4=(x-23/2+5√21

x^2-23x+1分解因式,x^2-23x+1分解因式,x^2-23x+1分解因式,x²-23x+1=0△=23²-4=525x=(23±5√21)/2x²-23x+1=

x^2-23x+1分解因式x^2-23x+1分解因式x^2-23x+1分解因式x^2-23x+1=(x^2-23x+529/4)-525/4=(x-23/2)^2-525/4=(x-23/2+5√21

x^2-23x+1分解因式,x^2-23x+1分解因式,x^2-23x+1分解因式,x^2-23x+1=(x^2-23x+529/4)-525/4=(x-23/2)^2-525/4=(x-23/2+5

已知x^2+1/x^2=23,试求x+1/x与x-1/x的值已知x^2+1/x^2=23,试求x+1/x与x-1/x的值已知x^2+1/x^2=23,试求x+1/x与x-1/x的值x2+1/x2=23

几道解方程的题help!26.5-5x=16.5-2.5x70.35-8.3=78-10.831.12-5.4=38.5-918+30-6x+2x=413x=990-2x2x-34=(41-3x)x2

0.3x+7x-0.25x=21.15x+7=2x+31.2x+1=0.01x+三分之五4x-26=3x+46x+2=5x+110.3x+7x-0.25x=21.15x+7=2x+31.2x+1=0.

x+3/20x=46,x-1/5x=40,x-1/2x=3/4,x-0.2x=18解方程x+3/20x=46,x-1/5x=40,x-1/2x=3/4,x-0.2x=18解方程x+3/20x=46,x