Top answers

How do you factorise quadratic equations?

Any quadratic equation, that is, an equation of the form ax 2 +bx+c=0, can be factorised , which means it is broken down into its linear factors . This means it will be of the form (x+m)(x+n). (We'll only co...
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Answered by Andrew B. • Maths tutor
3688 Views

How do I 'simplify' a surd?

Simplifying a surd means to express it using smaller numbers, making it easier to use in calculations. There are a couple of facts you will need to learn about surds, these are, 1) sqrt(a x b) = sqrt(a) x sq...
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Answered by Joanna Z. • Maths tutor
5890 Views

Ser or estar?

In Spanish there are two ways of saying to be. Ser is generally used for things that don’t change too much – inherent characteristics of people or things. Some examples are marital status, height, occupation...
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Answered by Chris K. • Spanish tutor
8773 Views

Explain Ohm's Law

Ohm's Law
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Answered by Zeeshaan A. • Physics tutor
3073 Views

How can I write an effective, original composition which will get a good mark?

The key to writing a good composition for A level music is keeping to a specific style which you set out in the accompanying explanation of the piece that you provide with it. In choosing a style or genre a ...
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Answered by Harry S. • Music tutor
5141 Views