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Mathematics 10 Online
OpenStudy (anonymous):

Find the product of (3x + 7y)^2

sam (.sam.):

9x^2 + 42xy + 49y^2

OpenStudy (amistre64):

1 2 1 (3x)^2 (3x)^1 (3x)^0 (7y)^0 (7y)^1 (7y)^2 -------------------- 9x^2 +42xy +49y^2

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