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OpenStudy (anonymous):
What are the possible number of negative zeros of f(x) = –2x7 + 2x6 + 7x5 + 7x4 + 4x3 + 4x2 ?
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OpenStudy (lgbasallote):
hint: f(-x) = 2x^7 + 2x^6 - 7x^5 + 7x^4 - 4x^3 + 4x^2 count the number of sign changes does that help?
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