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Mathematics 6 Online
OpenStudy (anonymous):

Factor: 81x2 - 49

OpenStudy (zpupster):

this is the difference of 2 sqaures can you see the squares??

OpenStudy (anonymous):

(9x+7)(9x-7)

OpenStudy (anonymous):

@Osako Don't just give him the answer, guide him through it to make sure he comprehends that problem.

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