Question

How do you simplify `(2x^3y^7)^-2`?

Answer 1

`(2x^3y^7)^(-2)=1/(4x^6y^14)`

Explanation:

`x^(-y)=1/x^y`, so.............

`(2x^3y^7)^(-2)=1/(2x^3y^7)^(2)=1/((2x^3y^7)(2x^3y^7))`

`=` `1/(2^2x^6y^14)=1/(4x^6y^14)`