CourseHeroexam3

CourseHeroexam3 - Name 6(5 points x 2 y 3 z 2 − xy 2 −...

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Score: /150= % Exam 1 Name: Show all necessary work to arrive at your results. Credit will not be given for answers without supporting work. Partial credit is possible, but only for work that demonstrates mathematical knowledge. Credit will not be given for nonsense, balderdash or gibberish. Please circle your nal answers. f Final answers must be simpli ed as much as possible. f Failure to fol low directions wil l result in no credit for the problem. Simplify. There should be no negative exponents. 1. (5 points) (4x 2 3x + 2) + (2x 2 6x + 1) 2. (5 points) (x 2)(x + 1) 3. (10 points) 3 x + 1 + 2 x 2 4. (10 points) x 2 + 2x + 1 x 2 9 · x 2 4x + 3 x 2 + 4x + 3 5. (10 points) 1 x y 1 x+y x x+y 9/19/2007 *Page 1 of 3* Math 1303 Fall 2007 Score: /150= % Exam 1
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Unformatted text preview: Name: 6. (5 points) x 2 y 3 z 2 − xy 2 − z 3 2 − 7. (5 points) 3 81x 5 y 4 − z 8. (10 points) 1 + 3 √ 1 − 3 √ Factor: 9. (5 points) x 2 − x − 56 10. (5 points) x 2 − 121 11. (5 points) x 2 − 14x + 49 Solve: 12. (10 points) 3x + 5 = 7x − 3 9/19/2007 *Page 2 of 3* Math 1303 Fall 2007 Score: /150= % Exam 1 Name: 13. (10 points) x 1 − 3 + x+1 2 = 4 14. (10 points) 4x √ + 5 = 7 15. (10 points) x 2 − 7x − 18 = 0 16. (15 points) Solve by completing the square: x 2 + 8x + 10 = 0 17. (15 points) Solve |3x + 4| ≥ 7. Write you answer using intervals. 18. (5 points) What is the degree of the polynomial 2x 3 − 5x 4 + x − 6x 7 − 1? 9/19/2007 *Page 3 of 3* Math 1303 Fall 2007...
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CourseHeroexam3 - Name 6(5 points x 2 y 3 z 2 − xy 2 −...

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