Some expressions consist of terms — parts that are added together. For example, the expression \(2x^2+3x-4\) has three terms: \(2x^2\text{,}\) \(3x\) and \(-4\text{.}\)

Some expressions consist of factors — parts that are multiplied together. For example, the term \(2x^2\) has two factors: \(2\) and \(x^2\) (with the multiplication symbol implied between them). The term \(3x\) has two factors: \(3\) and \(x\text{.}\) The expression \(x(x+1)(x-2)\) has three factors: \(x\text{,}\) \((x+1)\text{,}\) and \((x-2)\text{.}\)