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How many negative roots does the equation 3x^4 - 2x^3 + 8x^2 - x- 7 = 0 have? X+1 divides f(x) = x^5 + 9x^3 +10. Is this true or false? What volume in dm^3 of KCl is obtained in the equation 2KClO3 -> 2KCl + 3O2 Answer: 2 dm^3. Please show method? Is hartford train station open 24 hours? What is the average lifespan for a human?