Algebra

Surds

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 an exact answer ...
the difference of two squares

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

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

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...
brackets

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

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...