Top answers

What are the possible value(s) of x for the following: x^2 + 3x - 54 = 0

It is a quadratic equation and when factorised will be of the form (x +/- a) (x +/- b) = 0. We need to find 2 numbers, a and b, that add together to make the 3 for the 3x term and which are multiplied togeth...
KG
Answered by Kate G. • Maths tutor
5840 Views

What's the best way to learn verb conjugations?

The truth is, it varies from person to person. Some people like to get all colourful with their learning - they find that using differently coloured pens or differently coloured flashcards and notepads help ...
TW
Answered by Tom W. • Spanish tutor
3198 Views

Prove by induction that n^3+5n is divisible by 3 for every natural number.

Proof by induction has three core elements to it. To start with you must prove that the statement is true for the 'basic case'. For the most part this is 1, but some questions state it is higher. Do this by ...
PD
14387 Views

How should I analyse a primary source?

When analysing primary sources there are two keys areas to consider - content and provenance. We'll look at each in turn. Firstly content is all about what the source says or shows. What is it explicitly sho...
CN
Answered by Callum N. • History tutor
4889 Views

How will you teach Mandarin? Do you have a plan?

First, I was born and lived in the capital of China, I am a native speaker of mandarin and my english is advanced too, so there may not have communicative problems. Second, according to different students, d...
RW
Answered by Ramona W. • Mandarin tutor
2299 Views