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Nutran1983
2 năm trước
Tìm các số x,y biết chúng thỏa mãn Satoru đã gửi Hôm nay lúc 16:19 b, cho x+y=2 và x^2+y^2=20 Satoru đã gửi Hôm nay lúc 16:19 Tính x^3+y^3
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