The main use of brackets in writing is to ____.

clarify or indicate the order of operations in mathematical equations or formulas, to enclose citations or references in academic writing, to provide additional information or explanations in text, or to indicate dialogue or stage directions in scripts.

The main use of brackets in writing is to enclose additional information within a sentence that is not essential to the main point or structure of the sentence. Brackets are used to provide clarification, include comments or explanations, or to enclose citations or references.