express using positive exponents

Question

 express using positive exponents

 

xy-9

Answer 1

A negative exponent just means it's a "1 over" situation.  Look at some of these examples:

 

• x^-2=1/x²
• 1/x^-4=x⁴

 

So for your problem, only the y part has the negative exponent.  The x stays where it is.  

 

x/y⁹