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Mathematics 12 Online
OpenStudy (anonymous):

18xy^3-8x^3 y

OpenStudy (mertsj):

What are you supposed to do with it?

OpenStudy (anonymous):

factorise

OpenStudy (mertsj):

You should begin by factoring out the greatest common factor which is 2xy

OpenStudy (mertsj):

Do that and tell me what you get.

OpenStudy (anonymous):

i got (3xy) ^2-(2x)^2

OpenStudy (mertsj):

That is the differenct of 2 squares. Can you factor that?

OpenStudy (anonymous):

then how i'm i to approach this question?

OpenStudy (mertsj):

|dw:1338672878092:dw|

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