Re: Can TI-85 calcs FOIL?


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Re: Can TI-85 calcs FOIL?



Caitlin Keidel wrote:
>
> >from this: x^2+25
> >to this?: (x+5)(x-5)
>
> Not to be a pest or anything but x^2+25 does not factor into (x+5)(x-5).
>
> The correct equation is: x^2-25
>
> --Caitlin


Or the correct factors are (x+5i)(x-5i).


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