Quadratic formula commentary.

Answers to many seemingly challenging quadratic equations can be done easily.

[@yassertariqvideo]

A crystal-clear exposition of solving quadratic equation without the ubiquitous quadratic formula. The instructions to acquire roots from limited data (as exhibited in problem 3 and 4) are noteworthy, for they are less about computations but more about understanding. And, thank you for the 'shout-out.'

[@jimvollinger589]

Thanks again Yasser. I appreciated learning about you!