Mathematics
If 3 is a root of the quadratic equation x2 - px + 3 = 0, then p is equal to:
4
3
5
2
Related Questions
If the equation, x2 - ax + 1 = 0 has two distinct and real roots, then:
|a| ≥ 2
|a| ≤ 2
|a| > 2
|a| < 2
The positive value of k for which the equations x2 + kx + 64 = 0 and x2 - 8x + k = 0 will both have real roots, is
16
8
12
4
If the roots of the quadratic equation 2x2 + 8x + k = 0 are equal, then the value of k is:
2
8
4
none of these