Question

3x-1/x^2 - x-9/3x
Помогите

Answer 1

(3х-1)/х² - (х-9)/3х = 
= 3*(3х-1)/3х² - х*(х-9)/3х² = 
= (9х-3 - х²+9х)/3х² = 
= -(х²+3)/3х²