解方程题:x-1分之2+x+1分之3x=2这题怎么解?

问题描述:

解方程题:x-1分之2+x+1分之3x=2这题怎么解?

2/(X-1)+3x/(X+1)=2 2/(x-1)+(3X+3-3)/(X+1)=2 2/(x-1) +3-3/(x+1)=2 2/(x-1)-3/(x+1)=-1 5-x=1-x^2 x^2-x-4=0 x1=(1+根号17)/2 x2=(1-根号17)/2