from the sum of 4x-2xy+5Y+3x+7xy-13y-x+4xy-7y+6x-9xy+3y
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Step-by-step explanation:
(4x - 3x - x + 6x)(5y - 13y + 7y + 3y)( - 2xy + 7xy + 4xy - 9xy) = (x - x + 6x)(15y - 13y)(7xy + 4xy - 9xy - 2xy) = (6x)(2y)(11xy - 7xy) = (12xy)(4xy) = 48xy
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