Algebra Your 2x/2x example made me remember that I lately changed my teaching habit. I no longer write x = (-b +- sqrt(b^2 - 4ac)) / 2a but I write x + (-b +- sqrt(b^2 - 4ac)) / (2a) Reply
Your 2x/2x example made me remember that I lately changed my teaching habit.
I no longer write
x = (-b +- sqrt(b^2 - 4ac)) / 2a
but I write
x + (-b +- sqrt(b^2 - 4ac)) / (2a)