How do I do that within the text if I want to add or omit information

Question

How do i do that within the text if i want to add or omit information from a quotation?this question is part of mla citation practice quiz

teresa · Accepted Answer

Use brackets[] around the information you add and ellipses enclosed in brackets[...] for your informatiions you omit.

How do I do that within the text if I want to add or omit information from a quotation?