Question

find the roots of the equation 5 x square - 6 x minus 2 is equal to zero by method of completing the sqare

Answer 1

$x = - b + \sqrt{ {b}^{2} } + 4ac \div 2a$
$x = - b - \sqrt{b {}^{2} } + 4ac \div 2a$
then it =
$6 + \sqrt{76} + \div 10$
$6 - \sqrt{76} \div 10$