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How do I work out (2+y)^4 using the binomial expansion?

We're going to use the binomial expansion formula, which is a lot easier to remember than it looks:
(a+b)ⁿ=C₀*aⁿ*b⁰ + C₁*a^(n-1)...

Answered by Andrew B. • Maths tutor

3678 Views

What do you put in a personal statement?

Your personal statement should aim to explain why you deserve a place to study a course at university level. The idea behind it is to make it, simply, personal: you can pick and choose what goes into it. ...

Answered by Tamina S. • Personal Statements tutor

2610 Views

When do you use the past tenses 'passé composé', 'plus-que-parfait', and 'imparfait'?

The 'passé composé' - formed by the auxiliary 'avoir' or 'etre' conjugated in the present tense, followed by the past participle of the verb being conjugated - is used the most when speak...

Answered by Tamina S. • French tutor

19719 Views

What are the structural and functional differences between arteries and veins?

Arteries have a much thicker muscular layer than veins, as this allows them to contract strongly and generate a high pressure to allow blood to be quickly transported to tissues in the body. Arteries also...

Answered by Anita R. • Biology tutor

3114 Views