Write an expression that simplifies x^-4? Would it be 1/x^4? Please help explain. Thanks!

Answer::
[tex]\frac{x^{-7}}{x^{-3}}[/tex]Explanation:
Given the expression:
[tex]x^{-4}[/tex]We want to find an expression that simplifies to the given expression.
Consider the expression below:
[tex]\frac{x^{-7}}{x^{-3}}[/tex]Applying the division law of indices:
[tex]\frac{x^a}{x^b}=x^{a-b}[/tex]Therefore:
[tex]\frac{x^{-7}}{x^{-3}}=x^{-7-(-3)}=x^{-7+3}=x^{-4}[/tex]An expression that simplifies to the given expression is:
[tex]\frac{x^{-7}}{x^{-3}}[/tex]