Expanding double brackets ... 2𝑥 squared add 8𝑥 subtract 6𝑥 subtract 24. Finally, simplify where you can. 8 and –6𝑥 are both terms in 𝑥, so they can be simplified.

Expressions with brackets can often be mixed in with other terms. For example, \(3(h + 2) - 4\). In these cases first expand the bracket and then collect any like terms. Expand and simplify \(6g ...