Factoring, also called factorization, is the process of rewriting a number, a numerical expression, an algebraic expression, or any other math expression as the product of its factors.
1. The number 48 can be factored or written as the product of 8 and 6
48 = 8 × 6
2. The numerical expression 48 + 24 can be factored or written as the product of 4 and (12 + 6)
48 + 24 = 4 × (12 + 6) = 4 × 18
3. The algebraic expression 4x2 + 20x can be factored or written as the product of 4x and (x + 5)
4x2 + 20x = 4x(x + 5)