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this is a video on the quadratic formula and let's get started
uhm to access my menu you have to press second alpha
to enter the letters i n d e x then press alplha to enter the eight
and the open and closed parenthesis press enter and you are into my menu
you can go up and down with the cursor to get to the bottom of the menu
or up top here ah you can see how many things there
are for you to pass your calculus test and do your homework
but we're going to do the quadratic formula the quadratic formula right now
and we're going to scroll up to that I give you a little help on what it actually
is and what it solves ecetera
here's the formula which you write on your paper
that's the first thing you do in your partial credit problems
write the formula you get two points just for that
and uhm we're going to enter the a b and c ah you have to press alpha before you enter
anything into the entry lines here press alpha minus thirteen
press alpha six and alpha nine
I always show you what you've entered so you can change it if you've made a mistake
I say it's ok I'll press one here
I give you the choice of the quick answer or step by step
I'll do the quick answer right now here's that formula with everything
all the variables entered into it and here's the answer in
exact form and approximate form exact and approximate
pretty neat huh every step calculus dot com
go to my site buy my programs and pass calculus