Top answers

How do you factorise and know if it is a difference of two squares ?

1. First you need to learn how to recognise the form: Difference of two square numbers . a 2 - 36 (a 2 is a square number and 36 is also a square number and you are getting the difference between them) To fa...
EL
Answered by Esther L. • Maths tutor
5104 Views

What are cases for and why are they important?

Cases in Russian is one of the most common pitfalls that students encounter during the learning process. While you can master intermediate or even advanced vocabulary, it might be still difficult to use the ...
NZ
Answered by Nadezda Z. • Russian tutor
2912 Views

What is the difference between Perfective and Imperfective verbs?

Words in Russian language have very expressive morphology – that is their certain parts add to the meaning. For example, the word читать is different from прочитать , although they both have to do with readi...
NZ
Answered by Nadezda Z. • Russian tutor
4996 Views

Wenn du viel Geld hättest, was würdest du damit machen?

This question is testing the use of the conditional tense and shows both the use of the imperfect (hättest) and perfect forms of the conditional (würdest...machen). The response should be constructed in a si...
HV
Answered by Hannah V. • German tutor
6448 Views

What is differentiation used for?

Differentiation is used to find the gradient of a line, or curve. It can also be used to find the co-ordinates of stationary points, whether these be minimum, maximum or points of inflection. The second deri...
JM
10720 Views