1. The document discusses algebraic expressions, factorization, and radicalization. It provides examples of algebraic expressions, addition and subtraction of expressions, and finding the numeric value of an expression.
2. Notable products are introduced as special multiplication expressions between algebraic terms whose results can be easily determined without step-by-step calculation.
3. Factorization is described as expressing an algebraic term as the product of other terms called factors, such as factoring the number 20 into the prime numbers 2, 2, and 5.