Hay to used their translates are: Dutch-hooi, German-Heu, and English hew.

The square (²) can be distributed to each factor inside those parentheses.
3² = 3 × 3 = 9
as for the x^-3, we want to multiply our exponents together, leaving x^-6.

Note that since multiplication is commutative/associative, we can multiply these together in whatever order to simplify.
The x on the right can be rewritten as x¹. Multiply that and x^-6 together to get x^-5. (we just add the exponents)
As for the 9 and -2, multiply those together to get -18.
Now we have

.
Lastly, if you don't want a negative exponent in your answer:
It can be flipped to the bottom because of this property:

This leaves us with
Answer:
1.- impresión subjetiva
2.- característica objetiva
3.- analogía
4.- impresión subjetiva
5.- impresión subjetiva
6.- metáfora
7.- metáfora
8.- analogía
Explanation:
1.- impresión subjetiva because the time does not stop, it is a personal thought.
2.- característica objetiva because the information about the distance is a fact
3.- analogía because it is a comparison between the trees and the population.
4.- impresión subjetiva because it is a personal thought.
5.- impresión subjetiva because it is a personal feeling.
6.- metáfora because it describes a sentence which it is not literally applicable.
7.- metáfora because it describes a sentence which it is not literally applicable.
8.- analogía because it is a comparison between the trees and the giants.