Please generate answer to question #57 in picture.

Please show all work.

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45-54 - Real Zeros of a Polynomial Find all the real zeros of the polynomial. Use the Quadratic Formula if necessary, as in Example 3(a). .45. P(x) = 3x3 + 5x2 - 2x - 4 46. P(x) = 3x4 - 5x3 - 16x2+ 7x + 15 47. P(x) = x4 - 6x3 + 4x2 + 15x +4 48. P(x) = x4 + 2x3 - 2.x2 - 3x + 2 49. P(x) = x4 - 7x3 + 14x2 - 3x - 9 50. P(x) = P - Art - x3 + 10x- + 2.x = 4 51. P(x) = 4x3 - 6x2 + 1 52. P(x) = 3x3 - 5x- - 8x - 2 B 53. P(x) - 2x4 + 15x3 + 17x2 + 3x - 1 54. P(x) = 4x' - 18x4 - 6x3 + 91x2 - 60x + 9 81 55-62 . Real Zeros of a Polynomial A polynomial P is given 82. (a) Find all the real zeros of P. (b) Sketch a graph of P. 83. 55. P(x) 84. 56. P(x) x3 - 2x7 + 5x + 6 85. 57. P(x) - 2x3 7x2 1 4x 1 4 86