Part $1$ of $2$

Simplify the function algebraically and find the limit$.$

$\underset{x3}{lim}\frac{x^{2}2x-15}{x^2-6x9}$

Simplify the given limit$.$

$\underset{x3}{lim}\frac{x^{2}2x-15}{x^2-6x9}=\underset{x3}{lim}$

$($Type an expression using $x$ as the variable. Simplify your answer.$)$