How to solve a cubic equation (by the rational zero theorem & the synthetic division)

We will learn how to solve this cubic equation with the rational zero theorem and synthetic division. To see how to solve this by grouping, please see:    • How to factor a cubic polynomial like an e...   To see how to solve this by using cosine, please see:    • A cubic formula that you probably haven't ...   ----------------------------- Get your "algebra" t-shirt 👉 https://amzn.to/3A8Ed4k Shop my math t-shirts & hoodies on Amazon: 👉 https://amzn.to/3qBeuw6 ----------------------------- I help students master the basics of math. You can show your support and help me create even better content by becoming a patron on Patreon 👉   / blackpenredpen  . (Every bit of support means the world to me and motivates me to keep bringing you the best math lessons! Thank you!) ----------------------------- #math #algebra #mathbasics