55. 54. 52. Solve the equation. Check for extraneous solutions. 56. 57. 58. 59. Perform the indicated operation. Simplify the result completely. 60. 70. 62. 65. 61. 67. 63. 64. 66. 69. each equation. 68. Find the value of each variable. Write your answers in simplest radical form. 72. 73.
55. 52. 54. Solve the equation. Check for extraneous solutions. 56. 58. 57. 59. Perform the indicated operation. Simplify the result completely. 60. 62. 61. 63. 64. 66. each equation. 68. 70. 65. 67. 69. Find the value of each variable. Write your answers in simplest radical form. 72. 73.