# Algebra

## Surds

Surds are square roots that can't be reduced to a whole number and there's a few rules for dealing with them. NOTE: If the examiners ask for anÂ exact answerÂ ...

## Factorising and D.O.T.S.

Factorising is just putting things in brackets...and it's really cool *cough* Simple Factorising Find the highest common factors of all terms If there ...

## Sequences

You might get asked to find the nth term of a sequence on numbers like: 5, 8, 11, 14, 17, 20If they go up by a set number each time then this is easy. Simply...

## Powers, Roots And Indices

There's a few rules you might need to know about dealing with powers. 1) When multiplying you add the powers2) When dividing you subtract the powers3) If you...

## Algebra – Make Sure You Know The Basics

You probably know this already...but without it you're going to get totally confused Is It Negative Or Positive?You Multiply Letters Written Next To Each Oth...

## Brackets

There are a few rules you need to follow (or you too will suck at maths). The term outside the bracket multiplies everything inside individually ab means ...

## Proof

Proving Two Things Are EqualIf asked to do this in an exam it might be as simple as rearranging one side of an equation to show that it is the same as the other...