-5x＝-6

混合运算6x+2x²-3x+x²+1其中x＝-56x+2x²-3x+x²+1=3X+3X^2+1=3X(1+X)+1=3*(-5)*[1+(-5)]+1=(-15)*(-4)+1=613x²

6x+3＝7x（x+5）腹股沟x=-326x+3＝7x（x+5）6x=7x+35-3-x=32x=-327x^2+39x-3=0x=(-39±√1605)/49(能化简吗?)=-32

7x-6＝5x,求x是多少7x-6=5x7x-5x=62x=6x=333

(5/9x-4)+(40％x＋6)＝xx=45

5x+3＝6x-5x=8

6X－500＝5X6X－500＝5X先移项6x-5x=500合并同类项：x=500不明白请追问满意请采纳x=5006X-5X=500X=500好像。。是这样X=500

5x+3＝6x-1. 

(15-x)×6＝(20-x)×510

2x+6＝2.4x×52x+6＝2.4x×52x+6=12x12x-2x=610x=6x=0.62x+6=12x6=10xx=0.62.5.......错了如上0.6

(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)=(1+3+5+7……+2009)x-(2+4+6……+2010)x=(1+2009

x/x-3-5x/x^2-x-6计算原式=[x/(x-3)]-[5x/(x²-x-6)]=[x/(x-3)]-(5x)/[(x-3)(x+2)]=[x(x+2)]/[(x-3)(x+2)]-(5x)/[(x-3)(x+2)]=(x

x^6-x^5+x^4-x^2+x-1x^6-x^5+x^4-x²+x-1=x^5(x-1)+x^²(x²-1)+(x-1)=(x-1)[x^5+x²(x+1)+1]=(x-1)(x^5+x^3+x&

如下9*9宫图如何填xxx1xxx29xx5xxxxx4x68xxxxxxxxx7xx5xxx2xx6xx8xxx3xx9xxxxxxx5x16x4xxx3xxxx7xxxx2xxx84516542921569874466865489162

计算:x/x-2-5x/x²-x-6计算:x/x-3-5x/x²-x-6x/(x-3)-5x/(x^2-x-6)通分=(x^2-3x)/(x-3)*(x+2)=x*(x-3)/(x-3)(x+2)当x不等于3时原式=x/

(x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+5)(x+8)(x+7)+(x+5)(x+8)(x+6)方程左边=(x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+6)(x+7)(x+8+x+5)=

(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x+8)(x+9)(x+10)请化简我说的是化简化成x^10+ax^9+bx^8+cx^7+......+n的形式x^10+55*x^9+1320*x^8+18150*

5x-3x＝83x+6＝31-2(x-5)1.2x=8x=42.3x+6=31-2x+103x+2x=31+10-65x=35x=7

5x＝4x+35x-6＝3x+2 

求x5x－6＝x＋6－（2－x）快楼上错了5x－6＝x＋6－（2－x）5x-6=x+6-2+x5x-6=2x+45x-2x=6+43x=10x=10/3手机提问的朋友在客户端右上角评价点【满意】即可.10/331/34x=6-2+x3x=4

以知X平方-5x＝6,则10x-2x平方+5=?10X-2X²=-2（X²-5X）=-1210X-2X²+5=-710x-2x平方+5=-2*(X平方-5x)+5=-2*6+5=-7X平方-5x＝610x-2x