$\frac{4x-4}{x^2-1}-1>0$

$\frac{4x-4}{x^2-1}-\frac{x^2-1}{x^2-1}>0$

$\frac{-x^2+4x-3}{x^2-1}>0$

$\frac{-(x-3)(x-1)}{(x+1)(x-1)}>0$

Determine the boundary points and then the intervals that make the inequality true.

Determine the boundary points and then the intervals that make the inequality true.