Question

Find the roots of the following quadratic equation, if they exist, using the quadratic formula of Shridhar Acharya.
$9x^2+7x-2=0$

Answer 1

by Shridhar acharya's formula to test the existence of the roots, we have

$b^2-4ac=(7{)}^2-4\times 9\times 2=-23$

$\therefore$ root don't exist and they are imaginary