You have the following expression:
![\sqrt[]{40x^4y^3z}](https://img.qammunity.org/2023/formulas/mathematics/college/7emovdkmsopygux0wx0my43t0asb861rrq.png)
In order to simplify it you need to remember this property for Radicals:
![\sqrt[n]{a^n}=a^{(n)/(n)}=a](https://img.qammunity.org/2023/formulas/mathematics/college/amz89dlryvzltfmeq7epy7niyz2nfr107m.png)
Then:
- Descompose the number 40 into its Prime factors:

- Apply the Product of Powers property that states:

Then:

- Rewrite the expression:
![=\sqrt[]{2^2\cdot2\cdot5\cdot x^4\cdot y^2\cdot y\cdot z}](https://img.qammunity.org/2023/formulas/mathematics/college/xxeoqgy1e4vhico4shu9kwkheb076iss15.png)
- Simplifying, you get:
![=2x^2y\sqrt[]{2\cdot5yz}=2x^2y\sqrt[]{10yz}](https://img.qammunity.org/2023/formulas/mathematics/college/dq2w86r0kmgbv12htui9wrh1jc85xz5t7n.png)
The answer is:
![2x^2y\sqrt[]{10yz}](https://img.qammunity.org/2023/formulas/mathematics/college/4o9wf770ef98housqjs4ag0zattr2m0lvf.png)