Evaluate
a) (92)³
using suitable identities
Answers
Answered by
26
Answer:
779136
Explanation:
(92)³ = (100 - 8)³
= (a - b)³ = a³ - b³ - 3a²b + 3ab²
= (100)³ - 8³ - 240000 + 19200
= 1000000 - 64 - 240000 + 19200
= 779136
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