For Exercises 40-46. a. Lift all possiblt rational TOOlS or rational :.eros. b. Use
Chapter 3, Problem 43(choose chapter or problem)
For Exercises 40-46. a. Lift all possiblt rational TOOlS or rational :.eros. b. Use Dt!Scanes's Rule of Signs to determine the possible num!Hr of positOe and negarile real roots or real :.eros. c. Use symhetk diviJion to lesttht posrihle rational roots or zeros and find an actual root or :.ero. d. Use the quotietJI from part (c) 10 find all lire remaifling roou or zeros. 2.-' - 9x' - 7x - I - 0
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