Final answer:
Zach found that his writing style had issues with summarizing instead of analyzing, using informal language, and having an illogical sequence of information.
Step-by-step explanation:
Zach found that a problem with his writing style was that he tended to summarize information instead of analyzing it. He also had a tendency to use informal language or mix casual and formal language unintentionally. Additionally, he struggled with having an illogical or unclear sequence of information in his writing.
To improve his writing style, Zach should focus on providing more analysis rather than just summarizing information. He should also be mindful of using appropriate language for the context and ensuring a logical flow of ideas in his writing.