Applying the product rule, the simplest form of the expression

Simplify  $\left(4n^2b^3c^8\right)^0$  

What is the simplest form of $\frac{3x^2y^{-4}}{x^2}$  ?

According to exponent rules, when we multiply powers we _______ the exponents.

Rewrite each expression with a negative exponent.

¹/₁₂⁴

 $2y^7\times5y^8$