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Mathematics 22 Online
OpenStudy (anonymous):

Factor: x2 - 16 A. (x - 4)(x - 4) B. (x - 4)(x + 4) C. (x - 8)(x + 2) D. (x - 2)(x + 8)

OpenStudy (anonymous):

^ is the rule x^2-16 ---> (x+4)(x-4)

OpenStudy (anonymous):

sqrt 16 = 4

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