EduGoog

If the roots of the equations $x^2 + 3kx + 2 = 0$ are in the ratio of 1 : 2, then find the value of k.

Option :
A. 1
B. ± 1
C. 0
D. - 2

If the difference of the roots of the equation $x^2 - 2kx + 3k = 0$ is 4, then find the value of k.

Option :
A. - 1, 2
B. 4, - 1
C. 1, 3
D. - 4, 0

The quadratic equation whose roots are twice the roots of $2x^2 - 5x + 2 = 0$ is :

Option :
A. $8x^2 - 10x + 2 = 0$
B. $x^2 - 5x + 4 = 0$
C. $2x^2 - 5x + 2 = 0$
D. None

  •      
  • 3