3/4X+1/2×3/4=1X-35%=3903X+300%X=25.23/4X+1/2×3/4=1
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3/4X+1/2×3/4=1X-35%=3903X+300%X=25.23/4X+1/2×3/4=13/4X+1/2×3/4=1X-35%=3903X+300%X=25.23/4X+1/2×3/4=1
3/4X+1/2×3/4=1X-35%=3903X+300%X=25.23/4X+1/2×3/4=1
3/4X+1/2×3/4=1
X-35%=390
3X+300%X=25.2
3/4X+1/2×3/4=1
3/4X+1/2×3/4=1X-35%=3903X+300%X=25.23/4X+1/2×3/4=1
1、 3/4X+1/2×3/4=1 2、x-35%=390
3/4x+3/8=1 x=390+0.35
3/4x=5/8 x=390.35
x=5/6
3、3X+300%X=25.2 4、3/4X+1/2×3/4=1
(3+3)x=25.2 3/4x+3/8=1
6x=25.2 3/4x=5/8
x=4.2 x=5/6
rertetre黑色的空间啊还是
1:3/4x=1-1/2×3/4=1-3/8=5/8
x=5/8×4/3=5/6
2:x=390+35%=390+7/20=390又7/20
3:3x+3x=25.2
6x=25.2
x=4.2
4:同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-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
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=?
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
*-----------------------------------------------*| 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+1)(x+2)(x+3)(x+4)=24
(x-1)(x-2)(x-3)(x-4)=48
(x+1)(x+2)(x+3)(x+4)=24
x-1+x+2+x/3+4x=77
解方程(x+1/x-1)+(x-2/x+2)+(x-3/x+3)+(x+4/x-4)=4
x*2-4x+4/(x*-9)]/[x*-4/(x*2+3x)]/(1/3)x 其中x=-1
1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10+x^11+x^12=97.8 好多年没有用过过数学公式了 想不起来怎么算了 想知道 X值是多少
先化简,再求值:(2-x/x^2+x)/(x^2-3x/x^2+2x+1)x(9-x^2/4-2x),其中x=-2
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^+x^6+x^7+x^8的值
如果1+x+x^2+x^3=0,求x+x^2+X^3+x^4+x^5+x^6+x^7+x^8的值,