8X+10=10X-8 求X
3^x=2^x,求x.5^(x-1)·10^3x=8^x求x
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
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
设x-1\x=3,求x^10+x^8+x^2+1\x^10+x^6+x^4+1的值,
(4/x)+10/(x+24)=14/(x+8),求x
求方程5x-(24-x)-[8×(30-X)-2×(x-15)]=10的解
[10x+(8-x)][(8-x)*10+x]=1855
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
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
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),