(2x+1)(3x-2)-6x(x-1)-5x+9
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x+2/x+1)-(x+4/x+3)-(x+3/x+2)+(x+5/x+4)
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
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
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
1、x*(x+3)*(x+6)*(x+9)=68040 2、x*(x+1)*(x+2)*(x+3)*(x+4)=5544
5x-3(2x+1)=6x-4(5-3x)求x
1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2