15X+8=2X-26,5X+8=2X-27,0.3X-1.5=X+0.6 ,0.125X+2.75=-1.25X 0.

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/13 17:02:56

15X+8=2X-26,5X+8=2X-27,0.3X-1.5=X+0.6 ,0.125X+2.75=-1.25X 0.35X-1.5=-2.15X+3.5
,0.125X+2.75=-1.25X ,0.35X-1.5=-2.15X+3.5

15x+8=2x-26
15x-2x=-26-8
13x=-34
x=－2又13分之8
5X+8=2X-27
5x-2x=-27-8
3x=-35
x=-11又3分之2
0.3X-1.5=X+0.6
03x-x=0.6+1.5
-0.7x=2.1
x=-3
0.125X+2.75=-1.25X
0.125x+1.25x=-2.75
1.375x=-2.75
x=2
0.35X-1.5=-2.15X+3.5
0.35x+2.15x=3.5+1.5
2.5x=5
x=2
0.125X+2.75=-1.25X
0.125x+1.25x=-2.75
1.375x=-2.75
x=-2
0.35X-1.5=-2.15X+3.5
0.35x+2.15x=3.5+1.5
2.5x=5
x=2

已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2 1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550 30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1 X-5+8*X=7*X-2*X-1 x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x （X+X)+(X-X)+(X*X)+(X/X)=100 y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1 已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10), (3-x)/(1-x)-(5-x)/(7-x)+(x^2-x)/(x^2-8x+7)=1