1. what values of a, b, and c would you use in the quadratic formula for the following equation? 5x^2 + 9x = 4 a. a = -4, b = 9, c = 5 b. a = 5, b = 9, c = -4 c. a = 5, b = -4, c = 9 d. a = 5, b = 9, c = 4 2. *skipped* 3. what are the approximate solutions of 2x^2 - x + 10 = 0? a. -2, 2.5 b. -1.97, 2.47 c. -2.5, 2 d. no solution 4. solve the equation using the quadratic formula. 4x^2 + 3x - 10 = 0 a. x = -2, x = 1.25 b. x = -2, x = 2 c. x = -1.25, x = 2 d. x = -1.25, x = 1.25 can someonethe quadratic formula and the discriminant practice, unit 4 lesson 6.