Respuesta :
remember
√(xy)=(√x)(√y)
and
x^(m+n)=(x^m)(x^n)
√(81y^5)=
(√81)(√y^2)(√y^2)(√y)=
(9)(y)(y)(√y)=
9y^2√y
√(xy)=(√x)(√y)
and
x^(m+n)=(x^m)(x^n)
√(81y^5)=
(√81)(√y^2)(√y^2)(√y)=
(9)(y)(y)(√y)=
9y^2√y
[tex] \sqrt{81 y^{5} } = \sqrt{81} ( y^{5} )^{ \frac{1}{2} } =9 y^{ \frac{5}{2} } [/tex]