The document discusses two notable product rules: 1) The product of the sum and difference of two quantities is equal to the sum of their squares minus the difference of their squares. 2) When cubing a binomial, the result is equal to the cube of the first term plus three times the square of the first term multiplied by the second term plus three times the first term multiplied by the square of the second term plus the cube of the second term. Several examples are provided to demonstrate how to use the rules to evaluate expressions. Exercises for students to practice applying the rules are also included.