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How do you solve quadratic equations?

A typical GCSE question will give you an equation in the from ax 2 + bx + c, x 2 - 8x + 15 = 0 for example, and ask you to solve the possible value of X. To do this we need to split the equation into two hal...
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Answered by Tutor55115 D. • Maths tutor
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How do you solve the following simultaneous equations? Equation 1: 2x + 3y = 13 Equation 2: 3x - y = 3

There are various ways to solve simultaneous equations. The two easiest are by elimiation and by substitution. By Elimation When solving by elimination you want to ensure that you only have one variable (x o...
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Answered by Luke S. • Maths tutor
9378 Views

I am not convinced of the inter-related nature of the economy. How could increased productivity in Europe impact upon British house prices?

One of the most exciting parts of the Economics course is discovering the way in which various things that you will study interrelate. If European productivity were to increase, then the unit price of their ...
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Answered by Luke S. • Economics tutor
2107 Views

What is the difference between an alkene and an alkane?

Both alkenes and alkanes are chains of carbon and hydrogen molecules. The chains can be different lengths and each length chain has a different name. An alkene is a chain which has a double bond between two ...
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Answered by Emily H. • Chemistry tutor
2632 Views

What is the difference between the two versions of 'to be'?

There are two different verbs meaning 'to be' in Spanish- ser and estar. They are used for different things. The uses for ser can be remembered using the acronym 'Doctor': Date, Occupation, Characteristic, T...
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Answered by Emily H. • Spanish tutor
2799 Views