Binomial Expansion Using Pascal’s Triangle [latexpage] As an online math tutor, I love teaching my students helpful shortcuts! Algebra 2 and Precalculus students, this one is for you. Let’s learn a binomial expansion shortcut. Let’s say we want to expand $(x+2)^3$. Without knowing a shortcut, we would start out by Read more…
Simplifying Complex Fractions I took a few minutes last week to make a video for anyone struggling or needing a refresher on simplifying complex fractions. Usually this is covered during the first few weeks of precalculus, but it will come up in Calculus and even College Algebra. The key, as Read more…
Polynomial Division and the Benefits of Online Tutoring A precalculus student recently asked me if we could work on polynomial division. “Of course!” I said. “Long division or synthetic division?” She replied, “Oh, we’re learning the reverse tabular method. Can we do that?” The reverse tabular method? I had never heard Read more…