6+3/x=8-2x/2大神们帮帮忙

(X-2)=9（X+3）大神们帮帮忙 6+3/x=8-2x/2大神们帮帮忙 (x+8)(x-6)-104=x*2大神们帮帮忙解这个方程 解方程组2/(X+3)+6/(X－9)=1/(X-3)大神们帮帮忙 求导y=(x+1)(x+2)(x+3)(x+4)的导数大神们帮帮忙 x(x-1)(x-2)(x-3)=7920的过程大神们帮帮忙 [2x-3][x+1]大于0大神们帮帮忙 2(x+y)-3(x-y) =1 6(x+y)+7(x-y)=51大神们帮帮忙 x+3x=2*(x+300)怎么解大神们帮帮忙 解方程(x+a)/(x-b)+(x+b)/(x-a)=2大神们帮帮忙 -2(x-5)=8-x/2怎样做大神们帮帮忙 2x+5x=3大神们帮帮忙怎么解 求函数y=(1/3)的2x-x方的值域大神们帮帮忙 3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙 已知f(x)=x+1/x-3 解不等式f(x)大于等于2的解题大神们帮帮忙 x四次方-2x分解因式大神们帮帮忙 解不等式log3(x^2-2x-3) ＜log3(x+7)大神们帮帮忙 x-1的绝对值+x-2的绝对值+x-3的绝对值大神们帮帮忙