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Mathematics 20 Online
OpenStudy (anonymous):

Choose the correct product of (4x − 7)(4x + 7). 16x2 − 49 16x2 + 49 16x2 − 56x + 49 16x2 + 56x + 49

OpenStudy (saifoo.khan):

16x2 − 49

OpenStudy (anonymous):

WRONG SAIFOO ITS 16x^2-49

OpenStudy (anonymous):

what u teaching these kids

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