Question

How do you simplify `p(q^-2) (r^-3)`?

Answer 1

We know that `color(blue)(a^-m = 1/a^m`(`a!=0`)

Hence `p(q^-2) (r^-3) = p*(1/q^2)*(1/r^3)`

`=color(green)( p/(q^2*r^3)`

Answer 2

In general `b^(-m) = 1/(b^m)`

So `p(q^(-2))(r^(-3))`

`= p/(q^2r^3)`