Ayudenme con esta proporción?

(a + b)(c + d)(e + f) = 8¹⁶b(a / b + 1) • d(c / d + 1) • f(e / f + 1) = 8¹⁶b•d•f • (K + 1)(K + 1)(K + 1) = 8¹⁶bdf • (K + 1)³ = 8¹⁶bdf = (2³)¹⁶ / (K + 1)³

(a + b)(c + d)(e + f) = 8¹⁶a(1 + b / a)•c(1 + d / c)•e(1 + f / e) = 8¹⁶ace•(1 + 1 / K)³ = 8¹⁶ace = (2³)¹⁶ / (1 + 1 / K)³

∛(ace) + ∛(bdf) = 2¹⁶ / (1 + 1 / K) + 2¹⁶ / (K + 1) = [2¹⁶(K + 1) + 2¹⁶(1 + 1 / K)] / [(1 + 1 / K)(K + 1)] = 2¹⁶(K + 2 + 1 / K) / (K + 2 + 1 / K) = 2¹⁶

Rta : 2¹⁶.