Expanding brackets uses your skills in simplifying algebra. Remember that \(2 \times a = 2a\), \(a \times a = a^2\) and \(a - 2 = a + (-2)\). Powers or indices are the floating numbers next to ...

Expanding brackets involves using the skills of simplifying algebra. Remember that \(2 \times a = 2a\) and \(a \times a =a^2\). Powers or indices show how many times a number has been multiplied ...