Ex 2: Find the Zeros of a Polynomial Function - Real Rational Zeros

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This video provides an example of how to find the zeros of a degree 3 polynomial function with the help of a graph of the function.
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This is really helpful. My problem is when I can't graph the polynomial and I do not know any of the zeros. Where do I start?

Chris
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Thanks for the help but is there any way to graph the functions without calculator?

lifeinnewyork
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That is great to hear. Thanks for letting me know. Please share with others.

Mathispoweru
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I swear man, half my tuition should be handed to you..

mattweigand
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I have been watching your math videos a lot for help on my homework, and man you help me out! Thanks alot.


mojosoJoe
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is there a video on how to do this without graphing??

icheyennelove