Alright, so maybe not the Kahn from Star Trek, but we can pretend right? Kahn Academy is a resource for any and all who either need to learn a new formula, or just want to brush up what they already know and study it. Kahn Academy is a great resource for any student who needs to get through that dreaded math class.
What’s the price of this tutoring? Absolutely free! I personally have used it and it’s saved me from the heartbreak of failing a few math tests. So how does this all work? Simple, you tell it what you’re trying to learn and it generates a plan around it with loads of instructional videos that are clear and concise. It may test to see what you already know, from there it will know what you may need to focus in on and better hone your skills.
So whether you need a refresher on what a square root it is, or something way more advanced like Multi variable calculus. Kahn Academy has you covered.