Question

 

3/(x-1)-5/(x+1)-8=13/(1-x^2)

Answer 1

(3(х+1)-5(х-1)-8(х+1)(х-1)-13)/(х-1)(х+1)=0

3х+3-5х+5-8+8Х^2=0

8х^2-2х=0

2х(4х-1)=0

система

2х=0       х=0  

4х-1=0   4х=1   х= 1/4

 

Ответ: х=1/4, х=0