Evaluate Using Identity

Evaluate

\[ 104^3+96^3 \]

Solution:

Using identity:

\[ a^3+b^3=(a+b)(a^2-ab+b^2) \]

\[ 104^3+96^3 = (104+96)(104^2-104\times96+96^2) \]

\[ = 200(10816-9984+9216) \]

\[ = 200(10048) \]

\[ =2009600 \]

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