Simplify the expression \[ \frac{1}{x^2 - x} - \frac{1}{x^3 - x}. \]

Find for what values of \(x\) this expression is equal to \(1\).

Simplify the expression \[ \frac{1}{x^2 - x} - \frac{1}{x^3 - x}. \]

Find for what values of \(x\) this expression is equal to \(1\).