From trigonometry to calculus and vectors to geometry, few students take A-level mathematics thinking it's going to be an easy subject. But for Daily Mail readers who know their sequences from their ...

To expand a bracket means to multiply each term in the bracket by the expression outside the bracket. For example, in the expression \(3(m + 7)\), multiply both \(m\) and 7 by 3, so: \(3(m + 7) = 3 ...

Writing two brackets next to each other means the brackets need to be multiplied together. For example, \((y + 2)(y + 3)\) means \((y + 2) \times (y + 3)\). Expand ...