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OpenStudy (secret-ninja):
Kind of stuck here. :p Factor completely 3x^2 - 21. 3(x^2 - 7) 3(x + 7)(x - 7) 3(x + 7)(x - 3) Prime
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OpenStudy (secret-ninja):
I don't know if its A or C, or if I'm just having a brain fart. :/
Nnesha (nnesha):
okay what is your gcf ??
OpenStudy (anonymous):
It's A. Prove my solving all your options.
OpenStudy (secret-ninja):
The gcf is 3.
Nnesha (nnesha):
|dw:1420048194343:dw| gcf is 3 so after that you can factor it
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