I coulda used this

A new way to solve the quadratic equation has just been described.

A couple of decades ago, this would have been useful to me.


Mathematician discovers a simpler way to solve the quadratic equation that could fundamentally change the way students are taught math

"Loh’s method involves applying a much simpler equation to solve for one of the variables in the quadratic equation without having to go through with the often messy and confusing calculations of the full equation."

Sounds simple -- I'll need to do more research.