Solving Quadratic Inequalities (4 examples, part2)

Quadratic Inequalities Examples 0:00 example#3 6:18 exampl#4 If you enjoy my videos, then you can click here to subscribe https://www.youtube.com/blackpenredpe... 🏬 Shop math t-shirt & hoodies: https://teespring.com/stores/blackpen... 💪 Patreon:   / blackpenredpen   😎 (non math) IG:   / blackpenredpen   ☀️ Twitter:   / blackpenredpen   🍎 My site: https://blackpenredpen.com Blue Microphone: https://amzn.to/2DAbHYL Expo Markers (black, red, blue): https://amzn.to/2T3ijqW