Question

Rewrite using the power of the product property.81x^4y^8​

Answer 1

81 is 3^4, so

$3^4 \cdot x^4 \cdot \left(y^2\right)^4 = \left(3 \cdot x \cdot y^2\right)^4 = \boxed{\left(3xy^2\right)^4}$