$\"\"$

The quadratic equation is $\"\"$ .

The standard form of quadratic equation is $\"\"$ .

Compare the above two equations,

$\"\"$ .

The roots of the quadratic equation is: $\"\"$ .

Substitute $\"\"$ in above formula.

$\"\"$

$\"\"$ and $\"\"$

$\"\"$ and $\"\"$ .

The roots are $\"\"$ and $\"\"$ .

$\"\"$

The roots are $\"\"$ and $\"\"$ .