Write down the following products:
(5 - xy)(2 + xy)
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Given,
⇒ (5 - xy)(2 + xy)
⇒ (10 + 5xy - 2xy - x2y2)
⇒ (10 + 3xy - x2y2).
Hence, (5 - xy)(2 + xy) = (10 + 3xy - x2y2).
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