[tex]aX^2 + bX + c[/tex](adsbygoogle = window.adsbygoogle || []).push({});

where X belongs to the reals.

I am reading an analysis book and one of the problems asks me to minimize this general form polynomial.

I know that normally you would take the derivative and set it equal to zero, but in this case does that make sense? I would get the minimum is b when X = 0.

If that is the answer, how does that help me to show that

[tex] b^2 -4ac \leq 0 [/tex]

Thank-you for the help.

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# Homework Help: How do you minimize this?

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