Several options for writing equations in Word documents are discussed, including Word's built-in Equation Editor 3.0, which may require installation from the Microsoft Office CD. MathType is another recommended program, priced at $49, offering similar functionality. For more advanced users, MiKTeX provides LaTeX support for creating high-quality documents and images. Additionally, MathML Central allows users to convert equations into GIFs. The conversation highlights the importance of using these tools for a more professional presentation of mathematical expressions.