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The first thing to do, is see if it can be simplified: 5x -1 can't, however x^(3) - x simplifies to x(x^2 - 1) and then to x(x-1)(x+1) by the difference of two squares. So now we have (5x - 1)/(x(x-1)(x+1...

Differentiation is a really common technique in a branch of maths called calculus. The idea is that you have a line on a graph (or a 'function') and we want to know the gradient - the steepness - of that ...

This is where researching other artists' work could help - see how they represent what you are finding unrepresentable. Perhaps if they are attempting to depict the sublime, they refer to vast wildernesse...

The secret to source questions is to keep it simple - extra knowledge is useful, but it is important not lose sight of the source at hand or the question. When you look at a source one must identify the N...

Alkenes decolourise bromine water (orange/brown to colourless) while alkanes cause no change in colour. An electrophilic addition reaction occurs with the alkene. In a reaction between et...