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Mathematics 15 Online
OpenStudy (happyfeet8040):

Help please?! Fan + Medal!

OpenStudy (happyfeet8040):

What are the factors of x2 - 81? (x + 9)(x - 9) (x - 9)(x - 9) (x + 3)(x - 27) Prime

OpenStudy (anonymous):

What times what equals -81 and added together equals 0?

OpenStudy (happyfeet8040):

-9 times -9?

OpenStudy (anonymous):

-9 times -9 would equal 81 and added up for -18, so no

OpenStudy (acxbox22):

no in this case we can factor using opposites

OpenStudy (acxbox22):

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