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Mathematics 23 Online
OpenStudy (my4babiesandme):

factor 3r^4-243

OpenStudy (anonymous):

3(r^4 - 81) = 3(r^2 - 9)(r^2 + 9) = 3(r - 3)(r + 3)(r^2 + 9)

OpenStudy (my4babiesandme):

Thank you

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