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Maths
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simplify (x-1)^2 - (x-1)

This question involves factorising then simplifying an equation. Start with the original equation:(x-1)2 - (x-1) Take out a factor of (x-1)(x-1)(x-1-1)Simplify(x-1)(x-2) 

NL
Answered by Nathan L. • Maths tutor
4593 Views

How do I solve the Hannahs sweets question from the 2015 GCSE paper?

Here is a question from the 2015 edexcel GCSE paper that was considered particulary challenging. 

There are n sweets in a bag. 6 of the sweets are orange. The rest of the sweets a...

MR
Answered by Miranda R. • Maths tutor
12657 Views

What is the best way to prove trig identities?

In my experience the sure fire way to prove trig identities is by doing the following:

1) Assess the question e.g. is it obvious you're going to need a double angle or addition formula, c...

EA
4822 Views

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