(84%+7.72)x(1-1/8)
30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
3x-1>x+1 { x+8
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
x^8+x^6+x^4+x^2+1因式分解
x/2+x/8+x/12+x/20=1
X-5+8*X=7*X-2*X-1
因式分解x^8+x^6+x^4+x^2+1
计算(x+/1x)(x^2+1/x^2)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)(x^2-
[1/(x-1)(x+2)]+[1/(x+2)(x+5)]+[1/(x+5)(x+8)]+[1/(x+8)(x+11)]
化简:1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+...+1/(x+8)(x+9)
解方程:1/(x*x+11x-8)+1/(x*x+-8)+1/(x*x-3x-8)=0