81-86 - Zeros of a Polynomial 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. 81. P(x) = 2x* + 3x' – 4x² – 3x + 2 82. P(x) = 2x + 15x' + 31x² + 20x + 4 83. P(x) = 4x* – 21x? + 5 84. P(x) - 6x* – 7x – &r + 5x 85. P(x) = x - 7x + 9x' + 23x² – 50x + 24 86. P(x) = &r – 14x* – 22x + 57x² – 35x + 6

Algebra and Trigonometry (MindTap Course List)
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Author:James Stewart, Lothar Redlin, Saleem Watson
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Chapter3: Polynomial And Rational Functions
Section3.CR: Chapter Review
Problem 65E
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81–86 ■ Zeros of a Polynomial 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.

81-86 - Zeros of a Polynomial 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.
81. P(x) = 2x* + 3x' – 4x² – 3x + 2
82. P(x) = 2x + 15x' + 31x² + 20x
+ 4
83. P(x) = 4x* – 21x? + 5
84. P(x) - 6x* – 7x – &r + 5x
85. P(x) = x - 7x + 9x' + 23x² – 50x + 24
86. P(x) = &r – 14x* – 22x + 57x² – 35x + 6
Transcribed Image Text:81-86 - Zeros of a Polynomial 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. 81. P(x) = 2x* + 3x' – 4x² – 3x + 2 82. P(x) = 2x + 15x' + 31x² + 20x + 4 83. P(x) = 4x* – 21x? + 5 84. P(x) - 6x* – 7x – &r + 5x 85. P(x) = x - 7x + 9x' + 23x² – 50x + 24 86. P(x) = &r – 14x* – 22x + 57x² – 35x + 6
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