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Mathematics 7 Online
OpenStudy (anonymous):

i tried to factor x^2-12x+36-49y^2 i got to: x(x-12) (6+7Y)(6-7Y) now i don't know what to do next. The book shows the answer (x-6+7y)(x-6-7y) but i have no clue how they get that.

OpenStudy (anonymous):

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