How do I multiply indices together?

Multiplying indices is much easier then it first seems. First you need to undertand what an index or power is, A^2 (A to the power of 2) means AxA, A^3 (A to the power of 3) means AxAxA and so on. The difficulty come when you are asked to multiply two powers together, such as A^2 x A^3, if you break them down as we did earlier you get AxAxAxAxA = A^5. A simple trick to remember this so you don't have to simplify the indices every time is that when multiplying indices you add together the powers. eg A^4 x A^3 = A^7 because 3+4=7!