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Mathematics 15 Online
OpenStudy (anonymous):

Factor -2bk2 - 4bk + 30b. -2b(k + 5)(k - 3) -2b(k - 5)(k + 3) -2b(k - 5)(k - 3)

OpenStudy (anonymous):

the first one

OpenStudy (anonymous):

-2bk^2 - 4bk + 30b =-2b(k^2+2k-15b) =-2b(k+5)(k-3)

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