For Exercises 21–54, solve the inequalities. (See Examples 1–2) 21. 4w? – 9N 0 22. 16z – 25 < 0 23. 3w? + w < 2(w + 2) 24. 5y + 7y < 3(y + 4) 25. а? > За 26. d? > 6d 27. 10 – 6x > 5x 28. 6 – 4x > 3x? 29. m? < 49 30. у — 9 31. 16р" — 2 32. 549 < 50 33. (х + 4)(х - 1)(x – 3) >0 34. (x + 2)(x + 5)(x – 4) 0 35. — 5c (с + 2)(4 - с) > 0 36. —би(и + 1)?(3— и) > 0 37. 14 10f + 9 < 0 38. w – 20w? + 64 < 0 - 39. 2x + 5x? < 8x + 20 40. Зx3 3x < 4x? – 4 41. – 2x +10x – 6x2 18x > 0 - 42. -4x + 4x + 64x + 80x 2 0 43. —5и + 28и — 15и - 0 44. – 3w + 8w 4w < 0 45. 6x(2x – 5)*(3x + 1)°(x - - 4) <0 46. 5x(3x – 2)(4x + 1)°(x – 3)* < 0 47. (5x – 3)2 > -2 - 48. (4x + 1)? > -6 49. —4 2 (х — 7)° 50. —1 2 (х + 2)° 51. 16y > 24y - 9 52. 4w? > 20w – 25 53. (x + 3)(x + 1) < -1 54. (x + 2)(x + 4) < -1

For Exercises 21–54, solve the inequalities. (See Examples 1–2) 21. 4w? – 9N 0 22. 16z – 25 < 0 23. 3w? + w < 2(w + 2) 24. 5y + 7y < 3(y + 4) 25. а? > За 26. d? > 6d 27. 10 – 6x > 5x 28. 6 – 4x > 3x? 29. m? < 49 30. у — 9 31. 16р" — 2 32. 549 < 50 33. (х + 4)(х - 1)(x – 3) >0 34. (x + 2)(x + 5)(x – 4) 0 35. — 5c (с + 2)(4 - с) > 0 36. —би(и + 1)?(3— и) > 0 37. 14 10f + 9 < 0 38. w – 20w? + 64 < 0 - 39. 2x + 5x? < 8x + 20 40. Зx3 3x < 4x? – 4 41. – 2x +10x – 6x2 18x > 0 - 42. -4x + 4x + 64x + 80x 2 0 43. —5и + 28и — 15и - 0 44. – 3w + 8w 4w < 0 45. 6x(2x – 5)(3x + 1)°(x - - 4) <0 46. 5x(3x – 2)(4x + 1)°(x – 3) < 0 47. (5x – 3)2 > -2 - 48. (4x + 1)? > -6 49. —4 2 (х — 7)° 50. —1 2 (х + 2)° 51. 16y > 24y - 9 52. 4w? > 20w – 25 53. (x + 3)(x + 1) < -1 54. (x + 2)(x + 4) < -1

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter2: Working With Real Numbers

Section2.9: Dividing Real Numbers

Problem 8MRE

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