The number of ordered pairs (x; y) where x, y ∈ N* such that x2y2 - 2(x + y) is perfect square is .......
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The number of ordered pairs (x; y) where x, y ∈ N* such that x2y2 - 2(x + y) is perfect square is ..
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The number of ordered pairs (x; y) where x, y ∈ N* such that x2y2 - 2(x + y) is perfect square is ..
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Lê Huy Tường
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8 tháng 5 2021
1. Hamburger: Josh
2. Lasagna: Mom
3. Fish and ships: Grandma
4. Baked salmon: Grandpa
5. Spaghetti: Becca
6. Chicken strips: Dad