Q. The roots of the quadratic equation $x^{2} - 2\sqrt{3}x - 22 = 0$ are
A) Imaginary
B) Real, rational and equal
C) Real irrational and unequal
D) Real, rational and unequal
Explanation
(d)
Discriminant $(D) = \left( - 2\sqrt{3} \right)^{2} + 88$
$= 100$
$= 10^{2}$
$\Rightarrow$ Roots are real, rational and unequal
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.