Question

What is a simpler form of the radical expression?
4 sqrt 81x^20y^8

Answer 1

remember

`√(xyz)=( √(x) )( √(y) )( √(z))`
4
`√(81x^(20)y^8)`=
4
`=( √(81) )( \sqrt{x^(20)} )( √(y^8))`=
4
`=(9)( x^(10) )( y^(4))`=
36x¹⁶y⁴