2.(-4x+-6)/(-11x+10)>1,这道题有两种情况,(1)(-11x+10)>0,(2) (-11x+10)
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
计算:1/(x^2-7x+10)+1/(x^2-x-2)+1/(x^2+5x+4)+1/(x^2+11x+28)=( )
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
已知x^2-3x+1=0,求下列各式的值:(1)x^4+x^3-10x^2+x=1 (2)x^4+3x^3-11x^2-
(x+1分之x+6)-(x^+3x+2分之3x^+10x+4)+(x+2分之2x+1)=0,解这个方程
1+2x+3x^2+4x^3+5x^4+6x^5+7x^6+8x^7+9x^8+10x^9+11x^10当x=-1时的值
4x-2=3x+1 -x+3=10 x-7=11-x x=四分之一x+6
x的平方-2x+1=15 ; x(2x-5)=4x-10 ; x的平方+5x+7=3x=11
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),
(2x-2)(x-1)=0 x(x-5)=5x-10