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An arithmetic sequence has a constant difference between each term. For example: 2,4,6,8,10,12,… We can see clearly that all the terms differ by +2. We call this the common difference, d. A geometric sequenc...

Factorising is the process of putting brackets into an equation. Ideally the end equation should be as simple as possible, with the smallest numbers possible. The first step is to find the factor pairs of th...

Let's take the example: 3( x + 2) + 2( x - 1) Start with the first part: 3( x + 2) We have to multiply what is outside of the bracket with the individual things inside the bracket sparately and add them toge...

Genes, chromosomes and DNA are three vital components of cells and many students often confuse them with each other. DNA stands for Deoxyribose Nucleic Acid. DNA molecules contain the genetic code which is m...

Under normal circumstances, when there is an increase in the money supply the interest rate should decrase because money is more abundant hence the cost of borrowing is low. In a liquidity trap the interest ...