Question

3sqrt (27-81)-5

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Answer 1

`3\sqrt[3]{x-3}-5`

Explanation:

You can factor out the common term of 27 from 81*

`\sqrt[3]{27(x-3)}-5`

Separate

`\sqrt[3]{27}\sqrt[3]{x-3}-5`

Simplify
`\sqrt[3]{27}`**

`3\sqrt[3]{x-3}-5`

Finito. Nothing further can be done

*factor out 27

`(27x)/(27)-(81)/(27)=x-3`

**
`\sqrt[3]{27}=3` because

`3^3=27\\3*3*3=27`