Nice write up. You need to be a bit careful around certain aspects of your advice, however. As someone who has been through a similar journey, I found getting a tutor a hindrance to my efforts. EVERYONE is different and one of the mistakes I made was listening to others constantly telling me I neede...

Quadratic equation - DS question

Hello, Could someone please shed some light on how to solve the below question. I suppose it could be solved with a lot of trial and error, but I'm wondering if I'm missing something that can help me solve it within 2-3 mins. Is there a general rule about quadratics that could help? If 'r' and 's' a...