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Expanding and Factorising

shannon_b2907

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Quadratic Expression

Description

Difference of two squares

Flashcards by shannon_b2907, updated more than 1 year ago

	Created by shannon_b2907 over 11 years ago

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Resource summary

Question	Answer
Factorise 4x^2 - 9y^2	1. Same as (2x)^2 - (3y)^2 2. = 2^2x^2 - 3^2y^2 3. (2x+3y)(2x-3y)
Factorise x^2 - 25	1. (x-5)(x+5) 2. 25 = 5^2

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