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How would you differentiate f(x)=3x(2x-1)^2

This question is really straight forward

By using the Chain rule: f'(x) = uv' + u'v.

let u=3x, so u'=3

let v=(2x-1)^2, so v'=2x2(2x-1)=8x-4

Now, ...

Answered by Ruihang Z. • Maths tutor

6198 Views

How do I write a good introduction?

The key to this is remembering that introductions rarely score additional marks on exams, and so a short but sweet introduction is perfectly fine!

The most important thing is to avoid ph...

Answered by Imogen S. • English tutor

1683 Views

How do I memorise quotes for the closed book exams?

Remember that you only need a couple of quotes per point, and that the examiners prefer to see well-selected and relevant points rather than a huge amount of quotes with no link to the question!

Answered by Imogen S. • English Literature tutor

3530 Views

What is the multiplier effect?

The best way to explain the multiplier effect is through an example.

Imagine that the government invested £100m in building a new hospital. They would need to employ lots of staff to buil...

Answered by Linden S. • Economics tutor

4382 Views

The first three terms of a sequence are a, b, c. The term-to-term rule of the sequence is 'Multiply by 2 and subtract 4'. Show that c = 4(a – 3).

As the answer is given in the question, it's really important that you lay out your working carefully to give a convincing account as to how you got from the question to the answer.
Here we have a <...

Answered by Robin B. • Maths tutor

12152 Views