Toán Lớp 8: tính
a, 2021^3+1
2021^2-2020^2
b,2021^3-1
2021^2+2022
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Toán Lớp 8: tính
a, 2021^3+1
2021^2-2020^2
b,2021^3-1
2021^2+2022
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