Question 565932
={{{x^2/(3x+15)-25/(3x+15)}}}
Take LCD
={{{(x^2-25)/(3x+15)}}}
={{{(x^2-(5)^2)/3(x+5)}}}
={{{(x-5)(x+5)/3(x+5)}}}
={{{(x-5)cross((x+5))/3cross((x+5))}}}
={{{(x-5)/3)}}}
={{{x/3-5/3)}}}
={{{x/3-1&2/3)}}}