If $\sqrt{\dfrac{2}{3}}$ is a solution of equation 3x² + mx + 2 = 0, find the value of m.

$\dfrac{2}{3}$ and 1 are the solutions of equation mx² + nx + 6 = 0. Find the values of m and n.

The roots of the quadratic equation x(x + 8) + 12 = 0 are :

1. 6 or 2

2. -6 or -2

3. 6 and -2

4. -6 and -2

If one root of equation (p - 3)x² + x + p = 0 is 2, the value of p is :

1. -2

2. 2

3. ±2

4. 1 and 2