In order to a formal tone and style in writing in an argumentative essay, an author is required to replace 'overly charged language' as such language offers implicit meanings that come with a primary aim to persuade the audience emotionally and therefore, involves subjectivity and informality(due to confirming to the beliefs and preferences of the readers that may make it biased). While a formal tone requires the use of standard language that proposes a sophisticated description of ideas to offer an unbiased and bona fide representation of the topic that would help the argument to develop more objectively and effectively.
Charged language is often used in hyperbole and not typically based off of good facts. In an argumentative essay you need to support your claims with good facts. Charged language often manipulates people's emotions. Charged Language typically contains meanings beyond the word itself. Example of charged language: He is an <em>angel</em> of a friend It implies that he must be a very good friend, but it's not very direct. Hope this helped!