Factoring Special Products
Factor difference of squares, perfect square trinomials, and sum/difference of cubes using recognized patterns. Master Grade 9 special factoring formulas.
Key Concepts
New Concept The factored form of a difference of two squares is: $$ a^2 b^2 = (a+b)(a b) $$ What’s next Next, you'll apply this pattern and others to factor trinomials, binomials, and solve real world problems involving area.
Common Questions
What is the first step when factoring special products?
Always check for a greatest common factor (GCF) first. Factor out the GCF before applying grouping or special product patterns.
How do you verify factoring is correct?
Multiply your factors back together using distribution. If the product matches the original polynomial exactly, the factoring is correct.
When is factoring used in algebra?
Factoring solves quadratic equations, simplifies rational expressions, and finds zeros of polynomial functions in Grade 9 algebra.