Solve the following -

Key identity: (a^3 + b^3) = (a + b)(a^2 - a b + b^2)

Therefore, (a^3 + b^3) / (a^2 - a b + b^2) = a + b

• Let a = 121 and b = 353.

• Compute a + b = 121 + 353 = 474.

Final answer: 474