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Mathematics 8 Online
OpenStudy (anonymous):

factor: 54x^3-2y^3 thanks!!

OpenStudy (nottim):

What have you done so far?

OpenStudy (anonymous):

i did 2(26x^3-y^3)

OpenStudy (anonymous):

but then i dont know how to get to a trinomial from there

OpenStudy (nottim):

I'm wondering that too now...

OpenStudy (anonymous):

It's 27, not 26

OpenStudy (anonymous):

ohhhhhhh omg wow..what's wrong with me lol

OpenStudy (anonymous):

And at that point it's just difference of cubes. There's a formula for that, which is of the format (a^3-b^3)=(a-b)(a^2+2ab+b^2)

OpenStudy (anonymous):

Thank you!!! :D

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