# How do you simplify (5x-10)/(x^2-64) and what are the restrictions?

$= \frac{5 \cdot \left(x - 5\right)}{\left(x + 8\right) \left(x - 8\right)}$
The restrictions are that the numerator is not allowed to be $= 0$
This means that $x \ne - 8 \mathmr{and} x \ne + 8$