Please generate answer to question #85 in picture.

Please show all work.

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and lower bounds for the real zeros of the polynomial. 77. P(x) = x3 - 3x2 + 4 78. P(x) = 2x3 - 3x2 - 8x + 12 79. P(x) = x4 - 2x3 + x2 - 9x + 2 80. P(x) = x - x*+ 1 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) = 2x4 + 3x3 - 4x2 - 3x + 2 82. P(x) = 2x4 + 15x3 + 31x2+ 20x+ 4 given. 83. P(x) = 4x4 - 21x2 + 5 84. P(x) = 6x4 - 7x3 - 8x2 + 5x 85. P(x) = x5 - 7x4 + 9x3 + 23x2 - 50x + 24 86. P(x) = 8x5 - 14xt - 22x3 + 57x2 - 35x + 6 scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or cChapter(s) the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. SECTION 3.4 - Real Zeros of Polynomials 2 os Show that the What are the dimensions of the land, rounded to the neare