6/(5x-20) - (X-5)/(X^2-8X+16)=6/(5x-4)-(x-5)/(x-4)²=(6x-24-5x+25)/(5(x-4)²)=(x+1)/(5(x-4)²)
(5+1)/(5(5-4)²)=6/5
6/(5x-20) - (X-5)/(X^2-8X+16)=6/(5x-4)-(x-5)/(x-4)²=(6x-24-5x+25)/(5(x-4)²)=(x+1)/(5(x-4)²)
(5+1)/(5(5-4)²)=6/5