Find the value of a/b + b/a, if a and b are the roots of the quadratic equation x² + 8x + 4 = 0?

Related Mcqs:

1. If the roots of a quadratic equation are 20 and -7, then find the equation?

   A. x2 + 13x – 140 = 0
   B. x2 – 13x + 140 = 0
   C. x2 – 13x – 140 = 0
   D. x2 + 13x + 140 = 0

2. Find the quadratic equations whose roots are the reciprocals of the roots of 2x² + 5x + 3 = 0?

   A. 3x² + 5x – 2 = 0
   B. 3x² + 5x + 2 = 0
   C. 3x² – 5x + 2 = 0
   D. 3x² – 5x – 2 = 0

3. Find the roots of the quadratic equation: x2 + 2x – 15 = 0?

   A. -5, 3
   B. 3, 5
   C. -3, 5
   D. -3, -5

4. Find the roots of the quadratic equation: 2×2 + 3x – 9 = 0?

   A. 3, -3/2
   B. 3/2, -3
   C. -3/2, -3
   D. 3/2, 3

5. The sum and the product of the roots of the quadratic equation x(power 2) + 20x + 3 = 0 are?

   A. 10, 3
   B. -10, 3
   C. -20, 3
   D. -10, -3

6. Find the roots of quadratic equation: 2x² + 5x + 2 = 0?

   A. -2, -1/2
   B. 4, -1
   C. 4, 1
   D. -2, 5/2

7. Find the roots of quadratic equation: x² + x – 42 = 0?

   A. -6, 7
   B. -8, 7
   C. 14, -3
   D. -7, 6

8. Find the roots of quadratic equation: 3x² – 7x – 6 = 0?

   A. -6, 3
   B. 3, -2/3
   C. -5, 2
   D. -9, 2

9. One root of the quadratic equation x² – 12x + a = 0, is thrice the other. Find the value of a?

   A. 29
   B. 27
   C. 28
   D. 7

10. If a and b are the roots of the equation x² – 9x + 20 = 0, find the value of a² + b² + ab?

    A. -21
    B. 1
    C. 61
    D. 21