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How do you solve a quadratic equation e.g. x^2 - 5x - 14 = 0?

Quadratic equations take the form ax^2 + bx + c = 0. In the case above, a = 0, b = -5, c = -14. In order to solve it, we can factorise the equation into the form (x+c)(x+d) = 0. The answers are then x = -c, ...
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Answered by Manal P. • Maths tutor
4080 Views

y = (x + 2)(x + 5)

steps as follows:x times x = x 2 2 times 5 = 102 times x = 2xx times 5 = 5xthen add these together:y = x 2 + 7x +10x = -2, -5; y = 0, 10
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Answered by Georgie L. • Maths tutor
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What is sonata form structure, and how is it used by Beethoven in the first movement of the 'Pathetique'?

Sonata form could be described as a larger, more complicated ternary (ABA) form. It has three sections - the exposition, the development and the recapitulation. In the exposition there are two main musical i...
SC
Answered by Siobhan C. • Music tutor
10203 Views

How do you answer AQA's GCSE English Language Paper 1 Question 2?

Question 2 will ask about language methods used by the writer to describe a person, place or thing within a text and should take you 10 minutes to complete. This question focuses on AO2: "Explain, comme...
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Answered by Victoria T. • English tutor
18395 Views

Why do you need simultaneous equations?

This is an example of a simultaneous equation - 2X + Y = 5X + 3Y = 10 You can think of X and Y as apples and oranges from a market. You know that if you buy 2 apples and 1 orange it cost £5, but this doesn’t...
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Answered by Amelia G. • Maths tutor
3542 Views