If a and b are the roots of the equation x2 - kx + 16 = 0 and satisfy a2 + b2 = 32, then the value of k is
If 8 and 2 are the roots of x2
+ax+c = 0 and 3, 3 are the roots of x2 +dx+b = 0, then the roots
If a and b are the real roots of the equation x2 - kx + c = 0, then the distance between the points (a, 0) and (b, 0) is