39. x2 + 4x 3 = 0 40. 3x2 + 2x 2 = 0 – – In #41-42, factor to find all real solutions: 41. x2 5x = 0 42. – H. Complex (Imaginary) Numbers: the following: Simplify 43. 44. 45. 46. 47. (3i)2 48. (2i)2 49. 3i2 50. Solve the equation: 51. x2 = 9 52. x2 = -7 Perform the indicated operation: 53. (9 + 3i) + ( 7 i) 54. (1 6i) (8 + i) – – – 55. 2i(5 + 3i) 56. (5 + 4i)(2 + i)
39. x2 + 4x – 3 = 0 40. 3x2 + 2x – 2 = 0 In #41-42, factor to find all real solutions: 41. x2 – 5x = 0 42. H. Complex (Imaginary) Numbers: Simplify the following: 43. 44. 45. 46. 47. (3i)2 48. (2i)2 49. 3i2 50. Solve the equation: 51. x2 = 9 52. x2 = -7 Perform the indicated operation: 53. (9 + 3i) + ( 7 – i) 54. (1 – 6i) – (8 + i) 55. 2i(5 + 3i) 56. (5 + 4i)(2 + i)