Ashvin1 Ashvin1

03-04-2017
Mathematics

contestada

1-4h^2-12hk-9k^2 factorisation

please help thank you

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charlottekrist charlottekrist

03-04-2017

1-4h^2-12hk-9k^2
-(4h^2+12hk-(1-9k^2))
-(4h^2+12hk-(1^2-(3k)^2))
-(4h^2+12hk-(1+3k)(1-3k))
-4h^2-12hk+(1+3k)(1-3k)

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