Question

Simplify
`\sqrt[3]{125z}` -
`\sqrt[3]{64z}`

Answer 1

`\sqrt[3]{z}`

Explanation:

1. 
   `\sqrt[3]{125z} = \sqrt[3]{ {5}^(3) z} = 5 \sqrt[3]{z}`
2. 
   `\sqrt[3]{64z} = \sqrt[3]{ {4}^(3)z } = 4 \sqrt[3]{z}`
3. 
   `5 \sqrt[3]{z} - 4 \sqrt[3]{z} = \sqrt[3]{z}`