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this is a video from every step calculus dot com
demonstrating how my programs work on a T I eight nine
Titanium Calculator and other calculators in the
t i system for physics and calculus problems
I'm going to show how my programs do a quadratic formula proof
and let's get started you have to press second
alpha to put the i n d e x in here
you press alpha to put the eight and the open and closed
parenthesis press enter and you're into
my menu you have many choices here
so you can pass calculus and do your homework
we're going to scroll down to the q section here
and see if we can't find
quadratic formula do the calculations on
a quadratic formula proof I give you always a little
definition of it so you know what you're talking about
with the quadratic formula and why
you write this formula down on your paper or homework
right away and you enter your variables
you have to press alpha before you enter anything into
my entry lines of my programs remember that
so we're going to do alpha minus six
alpha minus five and alpha nine
I always show you what you've entered in case you made a
mistake and we're going to do the
quick answer here well on the proof will do
the full answer ah you enter the variables
and write this on your paper here they're entered into
the formula and then you do the calculations
just like you would if you were doing the
calculations yourself write everything down you see
go through each screen and you got the exact answer
here the approximate answer exact answer and
approximate answer for x
pretty neat huh every step calculus dot com
go to my site buy my programs
and pass calculus