Indices show where a number has been multiplied by itself, eg squared or cubed, or to show roots of numbers, eg square root. Check your understanding of the process with this National 5 Maths quiz.

Hey all, one thing that i *suck* at is simplifying complicated boolean expressions. I'm nearly always certain that there's a much clearer and more condensed way to write things, but my brain locks ...

Algebraic expressions can be simplified by collecting like terms. Positive like terms are often written before the negative like terms. When grouping the like terms together, the order does not matter ...