Given:
The given expression is
[tex](-2x^4y^{-4})(-5x^4y^2)[/tex]Required:
We have to simplify the given expression.
Explanation:
We know that when the same variables are multiplied then their power will add. We use this and proceed as:
[tex]\begin{gathered} (-2x^4y^{-4})(-5x^4y^2) \\ \\ =(-2)(-5)x^{4+4}y^{-4+2} \end{gathered}[/tex][tex]=10x^8y^{-2}[/tex]Final answer:
Hence the final answer is
[tex]10x^8y^{-2}[/tex]