(1-1/4)x(1-1/9)x(1-1/16)x.x(1-1/81)=?
x*x+2x+x*x+10x+x*x+25+2x+x*x+1+1+16+x*x+4x*x+9-12x+16x*x+4-1
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
如果3x*x-x=1那么9x*x*x*x+12x*x*x-3x*x-7x+2001等于多少
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),
(4x+2)/x+(4x-22)/(x-5)=(x-6)/(x-4)+(7x+9)/(x+1)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
(1+x)(4-x)
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1