Subscribe! Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter and section. I make most of my math lessons in a live classroom and do no editing.

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

Unfortunately, as I discovered, hackers can force invalid items directly into your inventory. "Item injection is an ancient script," Boblord says. "You can basically just pick what item you want them ...