Question

Which expression is a perfect cube?

12x^12y^18
12x^27y^125
64x^15y^125
64x^27y^125​

Answer 1

64x^27 y^125

Explanation:

just took the test

Answer 2

64x^27 y^125

Explanation:

`\sqrt[3]{64x^(27)*y^(125)}=\sqrt[3]{4*4*4*x^(3*3*3)*y^(5*5*5)}\\\\=4*x^(3)*y^(5)`