Question 1:
We have the following expression:
![4x ^ {-4}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kxf7351zhz0ukjlfbm09mwfmo9b8jckmpa.png)
By definition of power properties we have to:
![a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/8s37zwhesa4r6azimfmzz905qjx4sjzcln.png)
Then, rewriting the expression:
![\frac {4} {x ^ 4}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/swu89irvslwg4urvzh8cduyd343r9ippue.png)
ANswer:
![\frac {4} {x ^ 4}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/swu89irvslwg4urvzh8cduyd343r9ippue.png)
Question 2:
For this case we have the following expression:
![\frac {x ^ 8} {x ^ {14}} =](https://img.qammunity.org/2020/formulas/mathematics/middle-school/caxo4oi3j98yi1q81aq92eaiavoj5oqbir.png)
By definition of power properties of the same base we have:
![x ^ n * x ^ m = x ^ {n + m}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zam4fcmmp6o7v2lvkrwg6ieik8h7xxteer.png)
Then, we can rewrite the denominator of the expression as:
![\frac {x ^ 8} {x ^ 8 * x ^ 6} =](https://img.qammunity.org/2020/formulas/mathematics/middle-school/d0z1zjgss9wu33doocnnipw0f4qdgesukd.png)
Simplifying terms of the numerator and denominator:
![\frac {1} {x ^ 6}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1i823nzm0aeplvvw89zpgzq5rnpxc2r525.png)
ANswer:
![\frac {1} {x ^ 6}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/1i823nzm0aeplvvw89zpgzq5rnpxc2r525.png)