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OpenStudy (anonymous):
Find all values of x such that f(x) > 0 and all x such that f(x) < 0, and sketch the graph: F(x) x^4+3x^3-4x^2
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OpenStudy (anonymous):
most just can't figure out how to find the positive and negative for the graph.
OpenStudy (anonymous):
first you need to find the zeros of f. then split up your domain using those zeros and do a sign analysis of each interval in the domain...
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