If 3 is a root of the quadratic equation x² - px + 3 = 0, then p is equal to:

1. 4

2. 3

3. 5

4. 2

If the roots of the quadratic equation 2x² + 8x + k = 0 are equal, then the value of k is:

1. 2

2. 8

3. 4

4. none of these

The solution set for the quadratic equation 2x² = 288, is:

1. {12, 12}

2. {-12, -12}

3. {-12, 18}

4. {-12, 12}

The solution set for the quadratic equation 3x² - 18x = 0 is:

1. {6, 6}

2. {0, -6}

3. {0, 6}

4. none of these