x+8
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-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
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
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
X 7 X - X 7 X = X 9 8 X 9 X - X 9 X = 4 9
3x-1>x+1 { x+8
(2x^-5x+2/6x^+13x+6)*(6x^-5x-6/6x^-17x+10)*(12x^+8x-15/2x^-x
x+8
[10x+(8-x)][(8-x)*10+x]=1855
x^8+x^6+x^4+x^2+1因式分解