MathOverflow is not for homework help.
Here is one suggestion for a comment template for homework (or homework-like) questions, which is a bit longer - it contains link to FAQ on meta and mentions other sites (the list of sites and the formulation are copied from an older version of the FAQ - and later updated after some of the linked websites stopped working).
MathOverflow is not for homework help. But there are lots of other math Q&A sites where your question might fit right in, like math.stackexchange.com, Art of Problem Solving, Physics ForumsPhysics Forums, reddit/r/HomeworkHelp/.
[MathOverflow is not for homework help](https://meta.mathoverflow.net/questions/203/frequently-asked-questions-mathoverflow-faq/207#207). But there are lots of other math Q&A sites where your question might fit right in, like [math.stackexchange.com](https://math.stackexchange.com/), [Art of Problem Solving](https://artofproblemsolving.com/community), [Physics Forums](httphttps://www.physicsforums.com/), [reddit/r/HomeworkHelp/](https://www.reddit.com/r/HomeworkHelp/).