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Mathematics 19 Online
OpenStudy (anonymous):

What are the factors of x2 − 49? (x − 1)(x + 49) (x − 7)(x − 7) (x − 7)(x + 7) Prime

OpenStudy (anonymous):

3rd choice

OpenStudy (anonymous):

easiest thing to do is just FOIL all your choices and see which one matched the question

OpenStudy (anonymous):

oh thanks

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