Show that the equation x^3-13x+7=0 has 3 solns in the interval [-4,4]

aGhaly

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Jun 16, 2015
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Show that the equation x^3-13x+7=0 has three solutions in the interval [-4,4]
 
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Show that the equation x^3-13x+7=0 has three solutions in the interval [-4,4]
What are your thoughts? What have you tried? How far have you gotten? Where are you stuck?

Please be complete. Thank you! ;)
 
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