x-1/2[x-1/2(x-1)]<2/3(x-1)
(x-1)^3(x+1)(x-2)/(x+4)
(x+1)(x+2)(x+3)(x+4)+1
计算 x(x+3)-(x-1)(x-2)
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
化简 x(x-1)+2x(x+1)-3x(2x-5)
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙
【(Xˇ2-X)/x】 ·【 x/(X+1)】+【(3x+1)】
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4