In Problems 27-36, use any method to find the exact real solutions, if they exist. 27. x2 + 5x = 21 + x 28. x2 +17x = 8x - 14 w2 29. 8 11 +1%3D0 6. - 4 = 0 30. 2 1 31. 16z2 + 16z – 21 = 0 32. 10y2 -y- 65 0 33. (x- 1)(x + 5) = 7 35. 5x2 = 2x + 6 34. (x - 3)(1 –- x) = 1 36. 3x2 = -6x - 2 | |3D In Problems 37-42, solve each equation using a graphing utility. 37. 21x + 70 = 7x2 igga ald 38. 3x + 6 = 11x 2x - 0.01x2 = 0 40. -9.6 + 2x - 0.1x2 = 0 41. 25.6x2 - 16.1x - 1.1 = 0 42. 6.8z2 - 4.9z - 2.6 = 0 39. 300 %3D In Problems 43-46, multiply both sides of the equa- tion by the LCD and solve the resulting quadratic equation. 8 3 43. x +-= 9 44. x - 2 %3D x + 1

In Problems 27-36, use any method to find the exact real solutions, if they exist. 27. x2 + 5x = 21 + x 28. x2 +17x = 8x - 14 w2 29. 8 11 +1%3D0 6. - 4 = 0 30. 2 1 31. 16z2 + 16z – 21 = 0 32. 10y2 -y- 65 0 33. (x- 1)(x + 5) = 7 35. 5x2 = 2x + 6 34. (x - 3)(1 –- x) = 1 36. 3x2 = -6x - 2 | |3D In Problems 37-42, solve each equation using a graphing utility. 37. 21x + 70 = 7x2 igga ald 38. 3x + 6 = 11x 2x - 0.01x2 = 0 40. -9.6 + 2x - 0.1x2 = 0 41. 25.6x2 - 16.1x - 1.1 = 0 42. 6.8z2 - 4.9z - 2.6 = 0 39. 300 %3D In Problems 43-46, multiply both sides of the equa- tion by the LCD and solve the resulting quadratic equation. 8 3 43. x +-= 9 44. x - 2 %3D x + 1

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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