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How do you factorise quadratic equations by completing the square?

Divide the term in x by 2 and then put it in the bracket which will be squared. The last term from that expansion needs to be adjusted for.

Answered by Dario M. • Maths tutor

2873 Views

When do you use the imperfect/preterite past tense?

A good way to remember which form of the past tense to use is to think about when the action took place. The imperfect (with endings -aba and -ía) is used for continuous actions in the past, so you would ...

Answered by Mary G. • Spanish tutor

1848 Views

Expand: (3x-1)(x+5)(4x-3)

(3x^2+14x-5)(4x-3)= 12x^3-9x^2+56x^2-42x-20x+15=12x^3+47x^2-62x+15

Answered by William H. • Maths tutor

6960 Views

How to I incorporate critical opinion into my coursework?

Start by reading whole works - or extracts of works - by critics. Having a bank of quotes won't prove as useful to you as you'd think, and you'll have a hard time forming your own opinion around them.

Answered by Imogen S. • English tutor

1813 Views

What is enjambment as a poetic technique and how should I talk about it in an exam?

With poetry, I always write something with my students which I refer to as a 'poetry bible'. This is a long list of poetic techniques, with examples, and the effects they often have.
Enjambm...

Answered by Imogen S. • English tutor

5335 Views