Question

Simplify the expression.

Answer 1

Option A

Explanation

We can write

648=
`3^(3)* 3*2^(3)`

`x^(4) = x^(3)*x\\`

`y^(8) = y^(3)* y^(3)*y^(2)`

so we have

`3x\sqrt[3]{3^(3)*2^(3) *3 *x^(3)*x*y^(3)*y^(3)*y^(2)}} \\3x*3*2*x*y^(2)\sqrt[3]{3x*y^(2)}} \\\\18*x^(2)*y^(2)\sqrt[3]{3x*y^(2)}}`