If K = 216, then find the value of ∛K + ∛(K2).
42
Write K as a perfect cube: 216 = 6³.
∛K = ∛216 = 6
∛(K²) = (∛K)² = 6² = 36
∛K + ∛(K²) = 6 + 36
= 42
Check: K² = 46656 and 36³ = 46656, so ∛(K²) is indeed 36.
Hence, 42.
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