Top answers

How can you solve a quadratic equation?

There are 3 main ways of solving a quadratic equation x^2 + bx + c = 0 (we'll suppose the coefficient of x^2 is 1 for now). The first is factorisation, where if you can spot that you can factorise the expres...
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Answered by Warren L. • Maths tutor
4399 Views

What are the differences between the various 'you' forms in German?

In German, unlike in English, there are 3 different ways to address someone and say 'you'. In English, we have one easy way to address one person, two people, or a group of people, and it doesn't matter if y...
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Answered by Caroline C. • German tutor
2946 Views

Solve 5x-13 > 3x-7 for x.

What we're aiming to do is to have the 5x and 3x on the same side, and the constants on the other side of the inequality. So first let's subtract 3x from both sides, which gives 5x-3x-13>-7. Now to 'move'...
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Answered by Nigel M. • Maths tutor
6769 Views

What does the cognitive approach to depression suggest?

The cognitive explanation of depression suggests that negative thoughts and belief's cause depression. Beck's cognitive triad suggests that there are three focuses of negative thinking: the self (I am stupid...
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Answered by Jade W. • Psychology tutor
2279 Views

How do I remember what adaptations plants and animals have in dry conditions? How would I answer this in a question?

A main concern for both plants and animals is to hold onto as much water as possible and prevent evaporation wherever possible, which you should keep in mind when trying to recall what kinds of features they...
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Answered by Georgina M. • Biology tutor
8790 Views