3 ms·
There is no guessing in the "completing the square" method either.
by tirpen 5y ago
There is no guessing in the "completing the square" method either.
- crispyambulance 5y agoYeah, you're right, the method I was thinking of is actually called "solving by factoring". like this: https://www.youtube.com/watch?v=Z5MnP9da4EM&t=371s https://www.youtube.com/watch?v=Z5MnP9da4EM&t=371s It does involve writing down and checking combinations. It's roughly how I was taught back in the day and I think it's very popular even now.