2. ll. Fill in the blanks. Complete the sentence by choosing the correct answer from the box below. 1. The product of 2x(x-4) is 2x2 - 8x 2 is an equation that can be used to find the roots or solutions of the quadratic equation ax2+bx+c = 0 3 3. The nature of the roots of the quadratic equation is real, rational, cual when the value of the discriminant is o. 4. Without solving for the roots of quadratic equation, the sum of the roots of the quadratic equation is 5. One of the roots of 2x2 - 13x + 20 = 0 is 4. The other root is 6. To solve x2+ 8x = -5 by completing the square, the number to be added to both sides of the equation is 7. The factors of the quadratic trinomial y2 + 8y + 12 are 8. The quadratic equation whose sum and product of the roots are 9 and 0 respectively is 9. The method of solving the quadratic equation x2 = k is called 10. To use the quadratic formula, first write the given equation in​