$\"\"$

The equation is $\"\"$ .

Compare the equation with $\"\"$ .

a = 1, b = $\"\"$ and c = 7.

Apply quadratic formula: $\"\"$ .

$\"\"$ (Replace a with 1, b with $\"\"$ , and c with 7)

Product of two same sings is positive.

$\"\"$ $\"\"$

$\"\"$

$\"\"$ ( $\"\"$ )

$\"\"$

$\"\"$ $\"\"$

The solutions are $\"\"$ .