Yes. 5 questions a day with no account. A free account gets 10 a day, and Plus gets 150.
Explain works the problem step by step and ends with a check. Check my work finds the first wrong step in your attempt and lets you retry. Quiz me asks one question at a time on your topic and grades you.
The chat stays in this browser. Each reply is one request to the service, which keeps a usage record and never the text.
Not yet. Type or paste the problem; for math, write it the way you would say it, like 3x^2 - 5x = 2.