13x-4(2x+5)=17(x-2)-4(2x-1)怎么写啊
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
化简|x-1|+|x|用零点分段法当x>1时怎么写啊 还有|2x-1|+|x+1| 求|x-2|+|x-4|+|x-6|
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
-10x的平方+4x+1=5x+2x平方-2.怎么得12x的平方+x-3=0把步骤写一下
|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?
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
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