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JAMB - Mathematics (1986 - No. 1)

Evaluate (212)3 - (121)3 + (222)3
(313)3
(1000)3
(1020)3
(1222)3

解释

Evaluate (212)3 - (121)3 + (222)3

(221)3+

(222)3

1211
121
------
(1020)3

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