1.6x=4(x+1)
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
解方程(x/x(x+2))+(x/(x+2)(x+4))+.+x/(x+8)(x+10)=1
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
1.6x=4(x+1)
计算:1.6x-1/3x+2=5x-7/2x-5 2.2x/x-1=2/x+2=2 3.x-1/x+1-x/x-1=4/
(X+4)(x-2)(x-4),其中x=-1
(x^2+x-1)(x^2+x+2)=4
(1)3x(x+0.2)=4x(x-1.1)
1/(x-4)(x-3)+1/(x-3)(x+2)+1/(x-2)(x-1)+1/(x-1)x+1/x(x+1)=1/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),