WEBVTT
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okay, We know that we can take the derivative
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the power of negative 2/3 times negative Two acts.
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Now let's consolidate everything negative. Two acts over three
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front sees four minus X squared to the 2/3.
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Now we know the derivative is equal to zero when
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x zero, Therefore, X zero is one critical
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number. And then we know the derivatives undefined when
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x is positive or negative to therefore to and negative
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to our other critical members.