(1/2-5/9+5/6)x(-36)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3)
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|
1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2
(x/x-1)+(5x-2)/x*x-x=1 求x(有图)
5x-3(2x+1)=6x-4(5-3x)求x
6/(x+1)=(x+5)/[x(x+1)] (3-x)/(x-4)+1/(4-x)=1 2/(1+x)-3/(1-x)
(2) x-3分之5-x的平方-9分之x-2+2x-6分之x-1
解方程:6x(7-x)=36-2x(3x-5)x是字母x
求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-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