Answer :
[tex] \frac{ x^{2} -15x+36}{5x-60} \\ = \frac{(x-12)(x-3)}{5(x-12)} \\ = \frac{x-3}{5} [/tex]
After simplifying completely the quantity of x squared minus 15 x plus 36 all over 5 x minus 60, I got quantity x minus 3 over 5. I am hoping that this answer has satisfied your query about and it will be able to help you.