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Mathematics 22 Online
OpenStudy (anonymous):

Factorise 12pq^2r-16qp^3, I answered 2pq(6q-8p^2) why was I wrong??

hero (hero):

4pq(3qr-4p^2)

OpenStudy (anonymous):

why 4 and not 2?

hero (hero):

Because 4 is common to both 12 and 16

OpenStudy (anonymous):

right I keep forgetting GCF

OpenStudy (anonymous):

right - 4 is the gcf of 12 and 16

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

recite it chrissy - gcf gcf gcf !

OpenStudy (anonymous):

loooool

OpenStudy (anonymous):

make it a mantra

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