Written Works Direction. Circle the letter that you think best answer the question. a. a. a. a. a. C.-24 a. 1. Which of the following mathematical statement is a quadratic equation? x2 - 3x + 10 = 0 b. 8-3k = 12 C. X2 - 3x + 10 20 d. 3x2 - 6x + 1 2. What is the standard form of the quadratic equation x (x - 1) = 6? x²+x-6=0 b. x2 - X - 6 = 0 C. x² + x + 6 = 0 d. x2 - x + 6 = 0 3. Which of the following is the standard form of the quadratic equation x = = 2x²58 2x2 - X + 5 = 0 b. 2x2 + x + 5=0 c. 2x² - X-5=0 d. 2x2 + x - 5 = 0 4. What is the value of in the quadratic equation x2 + 6x + 5 = 0? 1 b.6 c. 5 d.o 5. In the quadratic equation (x-8)(x + 3), what is the value of c? 1 b.-5 d. 5 6. What is the formula in finding the discriminant? b-4ac b.b-2ac c. b2 - 2ac d. b2 - 4ac 7. Given the equation x2 - 2x - 8 = 0, what is the value of the discriminant? 16 b. 26 d. 46 8. Determine the nature of the roots of the equation x2 - 3x + 6 = 0. a. The roots are real and equal. b. The roots are real and unequal. The roots are not real roots. d. All of the above. 9. What is b2 - 4ac in the equation 2x2 - 5x + 3 = 0? 0 b. 1 c.-1 d.2 10. If b2 - 4ac >0, what is the nature of the roots of the quadratic equation? a. The roots are real and equal b. The roots are real and unequal C. The roots are not real d. None of the above. a. C. 36 C. a.​