Question 97391
{{{x^2/(x-3) - 9/(x-3)}}} Start with the given expression



{{{(x^2-9)/(x-3)}}} Combine the fractions. We can do this since both fractions have a common denominator {{{x-3}}}



{{{(x-3)(x+3)/(x-3)}}} Factor {{{x^2-9}}} to {{{(x-3)(x+3)}}}



{{{cross((x-3))(x+3)/cross((x-3))}}} Cancel like terms



{{{x+3}}} Simplify