Toán Lớp 6: a) cho x-2y=-4;x.y=6. Tính x38y3
b)x+3y=10;x.y=3 .Tính x3+27y3
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Toán Lớp 6: a) cho x-2y=-4;x.y=6. Tính x38y3
b)x+3y=10;x.y=3 .Tính x3+27y3
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