Question

Simplify the expression

Answer 1

Answer: B

Step-by-step explanation: This is a little long so bare with me, first we can rewrite the 648 under the root as 216 * 3, letting us pull out a 6 from the cube root and leaving a 3 in it.

Next we can rewrite x^4 under the root as x^3 * x^1, letting us pull out an x and leaving an x under the root

Lastly we can rewrite y^8 under the root as y^6 * y^2, letting us pull out a y^2 and leaving a y^2 under the root.

Multiply everything out and we get B