Solve the resulting problems if the given changes are made in the indicated examples of this section.

In Example 3, change the factor x² to x⁻² and then find the result.

Data from Example 3

(a)

(b)

In (a), we first used Eq. (11.6) and then (11.4). The simplification was completed by changing the division of a fraction to multiplication and using Eq. (11.1). In (b), we first used Eq. (11.3), then (11.6), and finally (11.1).

(xy) () = (x+y2) (2) xyz = : 4 2 = = xfy2 4