17.0k views
0 votes
Asking a question here

User Nabinca
by
3.7k points

1 Answer

4 votes

You have the following expression:


\sqrt[]{40x^4y^3z}

In order to simplify it you need to remember this property for Radicals:


\sqrt[n]{a^n}=a^{(n)/(n)}=a

Then:

- Descompose the number 40 into its Prime factors:


40=2\cdot2\cdot2\cdot5

- Apply the Product of Powers property that states:


(b^m)(b^n)=b^((m+n))

Then:


40=2^2\cdot2\cdot5

- Rewrite the expression:


=\sqrt[]{2^2\cdot2\cdot5\cdot x^4\cdot y^2\cdot y\cdot z}

- Simplifying, you get:


=2x^2y\sqrt[]{2\cdot5yz}=2x^2y\sqrt[]{10yz}

The answer is:


2x^2y\sqrt[]{10yz}

User Syed Hamza Hassan
by
3.7k points