Step-by-step simplification of a rational expression, factoring numerator and denominator, canceling common terms, and identifying restrictions.
Simplifying a rational expression by factoring and canceling common factors, showing the steps from (x² - 3x - 28)/(x³ - 9x² + 14x) to (x + 4)/(x(x - 2)) with restrictions x ≠ {0, 2, 7}.