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Maths
GCSE

How can I solve a quadratic equation by factorisation?

There are many ways to solve quadratic equations including completing the square, factorisation and using the quadratic equation.

Factorisation involves breaking the quadratic equation in...

Answered by Tiarnan B. Maths tutor
4151 Views

explain and show how quadratic equations are solved

3 methods on syllabus:

1. Completing the square

2. Quadratic formula 

3. Factorisation

Methodology can be shown upon interview.

Answered by Michael O. Maths tutor
4379 Views

In a competition, a prize is won every 2014 seconds. Work out an estimate for the number of prizes won in 24 hours. You must show your working. (4 marks)

They key to answering this question is that it is only asking for an estimate. So you don't need to provide an exact answer; as long as your answer is within a certain range you will get full marks pro...

Answered by Sivarjuen R. Maths tutor
12303 Views

How do I simplify surds?

In order to simplify a surd you need to look at the factors of the number under the square root. You can then multiply together the square roots of the factors.

For example if you wanted ...

Answered by Sarah M. Maths tutor
22386 Views

Solve these simultaneous equations. 2x + y = 10 and 3x + 4y = 25.

2x + y = 10 (1)

3x + 4y = 25 (2)

1. Eliminate y.

Method 1:

(1) x 4:

Answered by Daisy D. Maths tutor
10265 Views

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