Chapter 7 - Section 7.4 - Adding, Subtracting, and Dividing Radical Expressions - Concept and Vocabulary Check - Page 538: 3

$\sqrt[3] {27\cdot 2}+\sqrt[3] {8\cdot 2}=3\sqrt[3] { 2}+2\sqrt[3] { 2}=5\sqrt[3] { 2}$.

The given expression is $\sqrt[3] {54}+\sqrt[3] {16}$ Factor: $\sqrt[3] {27\cdot 2}+\sqrt[3] {8\cdot 2}$ Use $\sqrt[3] {a^3}=a$ $3\sqrt[3] { 2}+2\sqrt[3] { 2}$ Simplify. $5\sqrt[3] { 2}$.