What is the technical difference between "Don't" and "Do not" and "Aren't" and "Are not" in a question? [duplicate]

When asking a question in English, it's common to use the contraction "don't" or "aren't." At the same time, though, you can also use "do not" and "are not"

For example, you can say "Aren't you coming to the party?" and you can say "Are you not coming to the party?" However, it seems like these two sentences are not conveying the same meaning when contracted vs. not being contracted. So, is there a semantical difference between contracting or not contracting, and why is there a difference if they're the same words?

Another example may be "Don't you like peanuts?" and "Do you not like peanuts?"

Solution 1:

The only difference is the tone. Contractions are informal (don’t, aren’t, etc .. )

This essay in Cambridge is quite inclusive on the subject.