- - - - - - c. 14 11. x2 - 5 = 2x written in standard form is: a. x2 - 5 - 2x = 0 c. x2 + 2x - 5 = 0 b. x2 - 5 + 2x = 0 d. x2 - 2x - 5 = 0 - 12. Which of the following is the standard form of the quadratic 1 equation 2x(x a. 2x2 - X -4 = 0 c. 2x2 – 2x - 4 = 0 = b. 2x2 - x + 4 = 0 d. 2x2 - 2x + 4 = 0 For numbers 13 - 14, use the quadratic equation 9x + 5x2 = -14. 13. What is the value of a? a. 9 b. 5 14. What is the value of b? a, 9 b. 5 15. How many roots/solutions does a quadratic equation have? a. O b. 1 c. 2. 16. What is the value of b in the quadratic equation 2x2 + 5x + 9 = 0? b. 5 17. What is the value of c in the quadratic equation x2 - 6x = 0? b. 1 18. Find the solution of the quadratic equation x? - 100 = 0. a. x = 10 . x b. x = -10 c. Both A and B roperties of y2 = k has two real solutions c. 14 a. 2 c. 9 a. O c. 6 - - 1 U11f. 11 uring​