Multiplying Out Brackets (Edexcel GCSE Maths): Flashcards

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Multiplying out brackets
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Alternative name for expanding brackets

Distributive property

What does term outside single brackets do?

Multiplies each term inside

How to write p×qp \times q

pqpq

r×r=r \times r =

r2r^2

Effect of minus sign outside bracket

Reverses all signs inside

Expand: 3(2x+5)3(2x + 5)

6x+156x + 15

FOIL meaning

First, Outside, Inside, Last

FOIL: F stands for

First (first terms in each bracket)

FOIL: O stands for

Outside (outside terms)

FOIL: I stands for

Inside (inside terms)

FOIL: L stands for

Last (last terms in each bracket)

Safe method for (3x+5)2(3x + 5)^2

Write as (3x+5)(3x+5)(3x + 5)(3x + 5), then use FOIL

Why (3x+5)29x2+25(3x + 5)^2 \neq 9x^2 + 25

Missing middle term

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