In Exercises 45–68, use the method of your choice to factor each trinomial, or state that the trinomial is prime. Check each factorization using FOIL multiplication. 45. 3x? + 8x + 5 46. 2r? + 9x + 7 47. 5х2 + 56х + 11 48. 5x2 49. Зу? + 22y 50. 5y? + 33y – 14 51. 4y2 + 9y + 2 52. 8y2 + 10y + 3 53. 10x? + 19x + 6 16х + 3 16 54. 6x? + 19x + 15 55. 8r? 18x + 9 56. 4x2 27x + 18 57. 6y – 23y + 15 58. 16у? — бу — 27 59. 6y2 + 14y + 3 60. 4y2 + 22y - 5 61. 3x? + 4xy + y? 62. 2x? + 3xy + y? 63. бх? - 7ху -5у? 64. 6x2 – 5xy – 6y? 65. 15x? 31xy + 10y? 66. 15x? + 11.xry – 14y2 67. 3a? 68. 15а? — аb — 6ь? ab - 146?

In Exercises 45–68, use the method of your choice to factor each trinomial, or state that the trinomial is prime. Check each factorization using FOIL multiplication. 45. 3x? + 8x + 5 46. 2r? + 9x + 7 47. 5х2 + 56х + 11 48. 5x2 49. Зу? + 22y 50. 5y? + 33y – 14 51. 4y2 + 9y + 2 52. 8y2 + 10y + 3 53. 10x? + 19x + 6 16х + 3 16 54. 6x? + 19x + 15 55. 8r? 18x + 9 56. 4x2 27x + 18 57. 6y – 23y + 15 58. 16у? — бу — 27 59. 6y2 + 14y + 3 60. 4y2 + 22y - 5 61. 3x? + 4xy + y? 62. 2x? + 3xy + y? 63. бх? - 7ху -5у? 64. 6x2 – 5xy – 6y? 65. 15x? 31xy + 10y? 66. 15x? + 11.xry – 14y2 67. 3a? 68. 15а? — аb — 6ь? ab - 146?

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter7: Factoring

Section7.2: Factor Quadratic Trinomials With Leading Coefficient 1

Problem 134E: Look at Example 7.19, where we factored y2+17y+60 . We made a table listing all pairs of factors of...

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