If a ϵ R- and a ≠ - 2 then the equaiton x2+a|x|+1=0:
Can not have any real root
Must have exactly two real roots
Must have either exactly two real roots or no real roots
Must have either four real roots or no real roots
basic concept
Question 11. (x2+1)2−x2 = 0 has:
(a) four real roots
(b) two real roots
(c) no real roots
(d) one real roots
Question 8 The quadratic equation 2x2−√5x+1=0 has (A) two distinct real roots (B) two equal real roots (C) no real roots (D) more than 2 real roots