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What are the different methods of solving quadratic equations?

For your maths GCSE it is important that you understand the three main methods of solving quadtratics: factorisation, completing the square, and using the quadratic formula. 1. Factorisation: The first step ...
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Answered by Lois M. Maths tutor
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What is the difference between diffusion and osmosis?

Osmosis is the movement of solvent particles (usually referring to water) from an area of low concentration (i.e. lots of water particles) to and area of high concentration (i.e. less water particles and mor...
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Answered by Kaat M. Biology tutor
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When do I use the subjunctive in French?

In French the subjunctive is often described as a mood tense, it expresses things that are subjective; moods, feelings and emotions. The subjunctive is often introduced by 'que' , for example J'ai peur que, ...
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Answered by Kat H. French tutor
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Solve the simultaneous equations y= 3x +4 and y= 2x + 5

'Solve' means to find the values of the unknown variables in the equations , commonly letters, which in this question are x and y. Step 1: Put equations equal to eachotherBoth equations given are equal to y ...
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Answered by Vicky C. Maths tutor
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What are the functions of the Kidneys?

It is the kidneys job to filter the blood and remove waste products. The kidneys are made of functional units call nephrons of which there around a million per human kidney. In the renal corpuscle filrate co...
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Answered by Elizabeth A. Biology tutor
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