To expand a bracket means to multiply each term in the bracket by the expression outside ... algebra. Remember that \(2 \times a = 2a\) and \(a \times a =a^2\). Powers or indices show how many ...

Expanding brackets means multiplying everything inside the bracket by the letter or number outside ... algebra. Remember that \(2 \times a = 2a\) and \(a \times a = a^2\). Powers or index numbers ...