Proving that $\lim \frac{x}{ x^2-1} = + \infty $ as $x \rightarrow 1^{+}$
My Attempt: I arrived at $\frac{x}{ x^2-1} > M$, then I thought of adding +1 and -1 to the numerator, but then what I will still has 2 fractions one contain x and the other contain x^2, what shall I do?