Answer:
Answer B and C
Explanation:
When a variable gets squared it looks like this (the exponent gets cut in half):
=
![x](https://img.qammunity.org/2022/formulas/mathematics/high-school/a9sw50msm0inoav7spou76spw8zhpe27w2.png)
So The square root of 64 is 8:
8
Then the next two exponents cut in half:
![x^(2) y^(4)](https://img.qammunity.org/2022/formulas/mathematics/high-school/srxnfb3m79udqsmn6zg2d3ep0pz8oebnyd.png)
Then we put it back together:
![8x^(2)y^(4)](https://img.qammunity.org/2022/formulas/mathematics/high-school/d1h88l75or1t6mgmr0yslj2m33v2avoaoc.png)
Letter B is the correct choice along with C because of distributive Property.