question archive Use Descartes' Rule of Signs to determine how many positive and how many negative real zeros the polynomial can have
Use Descartes' Rule of Signs to determine how many positive and how many negative real zeros the polynomial can have
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Use Descartes' Rule of Signs to determine how many positive and how many negative real zeros the polynomial can have. Then determine the possible total number of real zeros. (Enter your answers as comma- separated lists.) P(x) = x3 - x2 - x - 5 number of positive zeros possible 1 number of negative zeros possible 2 X number of real zeros possible 3 X Need Help? Read It Watch It Talk to a Tutor 0/2 Points] DETAILS PREVIOUS ANSWERS SPRECALC7 3.4.081. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find all rational zeros of the polynomial, and then find the irrational zeros, if any. Whenever appropriate, use the Rational Zeros Theorem, the Upper and Lower Bounds Theorem, Descartes' Rule of Signs, the Quadratic Formula, or other factoring techniques. (Enter your answers as comma-separated lists. Enter all answers including repetitions. If an answer does not exist, enter DNE.) P(x) = 2x4 + 9x3 - 7x2 - 9x + 5 rational zeros X = 4 X irrational zeros X = 0 X
