Kevin F. answered 11/13/13
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Computer Programming and Mathematics Tutor
(4x4y2 + 5xy) - (7x4y2 - 7xy)
4x4y2 + 5xy - 7x4y2 + 7xy
4x4y2 - 7x4y2 + 5xy + 7xy
-3x4y2 + 12xy
David M.
asked 11/13/13
Kevin F. answered 11/13/13
Computer Programming and Mathematics Tutor
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