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Mathematics 21 Online
OpenStudy (anonymous):

Hey guys, how can I factorise quadratic expressions using the completed square form???

OpenStudy (anonymous):

I'm not exactly sure what you mean, but this link should help! http://www.purplemath.com/modules/sqrquad.htm :) and in terms of factoring, I always think backwards a bit. I use FOIL in order to factor it and to go from expression to original form, I think backwards with FOIL if that makes sense:)

OpenStudy (horsegirl27):

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