1) The document explains the expanding quotients rule for exponents, which involves applying the power outside of brackets to each term inside the brackets.
2) Examples show applying an exponent to terms like (2a), (a3/c), and (2h/c4) by raising both the numerical coefficient and variable to the same power outside the brackets.
3) The rule can also be used in reverse to combine identical exponents in a fraction into a single bracketed exponent expression.