[Solved] 29. Use the result in Exercise 28 to show

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29. Use the result in Exercise 28 to show the following: (a) The equation x'+ 4x - 1 =0 has exactly one real root. (b)

29. Use the result in Exercise 28 to show the following: (a) The equation x'+ 4x - 1 =0 has exactly one real root. (b) If b' - 3ac

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