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Factorise x 2 − x − 12

X 2 - X -12 look at what numbers will add together and make 12. (2x6) or (3x4)Then see what of these combinations, when added together, makes -1. you have to consider that one of these values will be negativ...
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Answered by Vicky V. • Maths tutor
4958 Views

How can you integrate the function (5x - 1)/(x^(3)-x)?

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)) ...
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Answered by Adam W. • Maths tutor
3693 Views

What actually IS 'differentiation'?

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 cur...
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Answered by Ben T. • Maths tutor
4018 Views

I have too many abstract ideas for work I could make, but no concrete imagery to work from

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 wildernesses, ...
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Answered by Francis R. • Art tutor
1986 Views

What is the secret to source questions

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 NOP ...
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Answered by Dragomir S. • History tutor
2965 Views