Question

What is this simplified

Answer 1

You can factor both the numerator and denominator:

$\frac{x^2 -10x-11}{x^2 - 121} = \frac{(x-11)(x+1)}{(x-11)(x+11)}$

Next, cancel out common factors:

$\frac{(x-11)(x+1)}{(x-11)(x+11)} = \frac{x+1}{x+11}$

Your answer should be $\frac{x+1}{x+11}$.