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Factorise y squared -9w squared
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Factorise y squared -9w squared
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Jan 18, 2018
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Factorise y squared -9w squared
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Hansen
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y^2 - 9w^2
= y^2 - 3^2w^2
=(y + 3w)(y - 3w)
Dirtydexter
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Jan 23, 2018
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