CBSE Class 10 Answered
Plz answer:
Asked by | 06 May, 2010, 03:04: PM
Expert Answer
(a+b)3 = a3 + b3 + 3ab2 + 3a2b
Using the above identity,
For a = 9q and b = 1
The algebraic expression (9q + 1)3 can be expanded as:
(9q + 1)3 = 729q3 + 1+3 x 81q2 x 1 + 3 x 1 x 9q
= 729q3 + 1+ 243q2 + 27q
Answered by | 06 May, 2010, 03:38: PM
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