BackUse Choices A–D to answer each question. A. 3x2 - 17x - 6 = 0 B. (2x + 5)2 = 7 C. x2 + x = 12 D. (3x - 1)(x - 7) = 0 Only one of the equations does not require Step 1 of the method for completing the square described in this section. Which one is it? Solve it.
Use Choices A–D to answer each question. A. 3x2 - 17x - 6 = 0 B. (2x + 5)2 = 7 C. x2 + x = 12 D. (3x - 1)(x - 7) = 0 Only one of the equations is set up so that the values of a, b, and c can be determined immediately. Which one is it? Solve it.
Solve each equation using the zero-factor property. x2 - 5x + 6 = 0
Solve each equation using the zero-factor property. 2x2 - x = 15
Solve each equation using the zero-factor property. -6x2 + 7x = -10
Solve each equation using the zero-factor property. 9x2 - 12x + 4 = 0
Solve each equation using the zero-factor property. 36x2 + 60x + 25 = 0
Solve each equation using the square root property. See Example 2. x2 = 121
Solve each equation using the square root property. 48 - x2 = 0
Solve each equation using the square root property. x2 = -400
Solve each equation using the square root property. (x - 4)2 = -5
Solve each equation using completing the square. x2 - 7x + 12 = 0
Solve each equation using completing the square. x2 - 2x - 2 = 0
Solve each equation using completing the square. 2x2 + x = 10
Solve each equation using completing the square. 3x2 + 2x = 5