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Equations & Systemshard
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Consider the polynomial P(x)=3x4−2x3+x2−5x+2P(x) = 3x^4 - 2x^3 + x^2 - 5x + 2P(x)=3x4−2x3+x2−5x+2. Using Descartes' Rule of Signs, what can you conclude about the possible number of positive real roots?