Key learning points

1. Quadratic equations can model real-life situations.
2. Solutions would need to be interpreted in context.
3. The difference of two squares is not only used in algebra, but can be used to quickly calculate numerical expressions.

Keywords

• Partial product - A partial product refers to any of the multiplication results that lead up to an overall multiplication result.

• Binomial - A binomial is an algebraic expression representing the sum or difference of exactly two unlike terms.

• Factorise - To factorise is to express a term as the product of its factors.

• Solution (equality) - A solution to an equality with one variable is a value for the variable which, when substituted, maintains the equality between the expressions.

Common misconception