(x-1)(x-2)(x-3)=0怎么算?
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
x+1分之x-1 + 1-2x分之2x=0怎么算,
lim(x→0)[(3x+1)/(4x-2)]^1/x 这道题怎么算极限
lim(x→0)(x^2+cosx-2)/(x^3)*ln(1+x)怎么算
(2x+1)²-(x+3)(3-x)=6x怎么简便算?
【(x-1)/x】-【(7x-7)/2x】+3=0 怎么解
(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
3(2x-1)+5(1-2x)+2x+4=0怎么算
x²-2x-x+2=0怎么算
X-40%X+1200=2/3X怎么算
y+(1+x)(2+x)(3+x)导数怎么算,