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Factorising Quadratics: x ^2 ​​ − x = 12

Factorising a quadratic basing means 'putting it into 2 brackets'. The standard format for a quadratic equation is:ax^2 + bx + c = 0. You'll usually find that this becomes a lot easier when a=1. As well as f...
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Answered by Avishka D. • Maths tutor
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Explain the events which caused the outbreak of the First World War.

World War I was caused by both long and short term factors, primarily the assassination of Archduke Franz Ferdinand at the height of Austria-Hungarian and Serbian friction, which acted as a trigger for the d...
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Answered by Vicki P. • History tutor
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What are Isotopes?

Atoms and elements are made of protons, neutrons and electrons. The nucleus is made of protons and neutrons, and the electrons surround the nucleus, as shown in the illustration below. The sum of the number ...
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According to tort law, who is your neighbour ?

Your neighbour is someone we could reasonably expect to be affected by our acts or omissions
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Answered by Ibitein F. • Law tutor
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What is the difference between compounds elements and atoms etc..?

This can be such a confusing topic and something that I struggled with but once you get it, it makes so much sense. The best way for me to learn these was using flashcards so if that's something you want to ...
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Answered by Rebeka B. • Chemistry tutor
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