Which underlying assumption is made when creating models for the universe?

The laws of physics are the same everywhere in the universe

Explanation:

The underlying assumption made when creating models for the universe is that, the laws of physics are the same everywhere in the universe.

step-by-step explanation:

we are given

we have to simplify it

firstly, we will factor it

now, we can cancel like terms

now, we can combine it

so, we get

i think the answer is a, hope this is right, that would be my best guess.