**Raw Transcript**

This is a video from everystepcalculus.com demonstrating how my programs work on a TI89 Titanium Calculator and other calculators in the TI 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 parentheses 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. EveryStepCalculus.com go to my site buy my programs and pass calculus.

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