4/3 x-x=17.5
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
3/4x-5x%=17.5 2x-(x+1)/2=x+1/2
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
2x+3x+4x+5x+x+6x+7x=100
4/3 x-x=17.5
3/4X=17.5+5x%
3/4X-5X%=17.5,
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
计算2x X 4x--3x=
(1)3x(x+0.2)=4x(x-1.1)
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