evaluate the following using a suitable identity: (a) 998³ (b) 10.2³ (x) 9.8³ (x) 998²-4 (e) 999²-1 (f) (-2 5)³ + 10 +15³ (g) 10.2 * 9.8
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I don't know but I am not sure to this answer
because I thick this is not full answer
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