Factorising (AQA GCSE Maths): Flashcards

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Factorising
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What is factorising?

Putting brackets back into algebraic expressions

Reverse process of factorising

Expanding brackets

What are common factors in factorising?

Factors taken out and placed at the front of the brackets

Step 1 of factorising method

Find largest number dividing all terms

Step 2 of factorising method

Identify lowest power of each variable

Formula for difference of two squares

a2b2=(a+b)(ab)a^2 - b^2 = (a + b)(a - b)

What does D.O.T.S. stand for?

Difference Of Two Squares

Why factorise algebraic fractions?

To simplify by cancelling common factors

How to check factorising is correct?

Expand the brackets back out

Factorise 3x2+6x3x^2 + 6x

3x(x+2)3x(x + 2)

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