Top answers

How can I express x^2 - 7*x + 2 as (x - p)^2 + q ?

o One way to approach this question is to expand the right expression (x - p) 2 + q . As we know from binomial expansions this gives us x 2 - 2 p x + p 2 + q . o Now we need to ensure that we choose values f...
SK
2507 Views

How have you expanded on areas of the curriculum, in which you are interested, outside of the classroom?

This is one of the most common questions that a student will be asked when discussing their personal statement in interview. It's all very well claiming to love a subject or a particular area of the curricul...
AJ
2775 Views

Discuss the advantages and disadvantages of two contrasting cultures/religious groups living within a confined community.

Questions such as these are looking for the student to provide an example from their historical education and demonstrate an ability to support theories and ideas with examples. They are most commonly found ...
AJ
Answered by Alice J. • HAT tutor
3160 Views

Write √98+3√8-√200 in the form a√2, where a is an integer

Step 1 : Put all the surds in to the form a√2. Starting with √98 try and work out what numbers multiply together with 2 to get 98 (2x49). Therefore √98=√(2x49). As 49 is a square number you can take it outsi...
ER
Answered by Emma R. • Maths tutor
6582 Views

Explain the concept of 'threshold potential' in the initiation of an action potential

Action potentials are only initiated when depolarization above a certain level occurs, this level is known as the 'threshold potential'. 'Vm' is the resting membrane potential (voltage) and the depolarizing ...
TD
15449 Views