The better your question is, the easier it is for someone to answer it. The better your response is, the easier it is to understand. Here are a few guidelines on writing good posts:
Make your question complete and self-contained yet concise
Please avoid questions like “How do I do #42?” - rather, state the problem completely. Even if it’s from a textbook, you might need more context to make the problem clear here. Nonetheless, you don’t want to exclude irrelevant or extraneous information.