Question

the sum of roots of the quadratic equation x2 -3x = 0 is A) 1. B)0 C) -3. D) 3

Answer 1

(0)2-3 (0) =0
0-0=0
0=0
B)0 is correct

Answer 2

x^2-3x=0. We know x = {-b+- (b^2-4ac)^(1/2)}/2a putting the values we get (3+-3)/2
Case1 (3+3)/2=3 case 2 (3-3)/2=0
(b)0 and (d) 3