$\"\"$

\

The equation is $\"\"$ .

\

Solve the above equation by the factoring method.

\

$\"\"$

\

Factor by grouping.

\

$\"\"$

\

$\"\"$

\

Set 1 st factor equal to zero.

\

$\"\"$ .

\

Set 2 nd factor equal to zero.

\

$\"\"$

\

$\"\"$

\

Apply formula : $\"\"$ .

\

$\"\"$

\

Set 1 st factor equal to zero.

\

$\"\"$ .

\

Set 2 nd factor equal to zero.

\

$\"\"$

\

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

\

The solution of the quadratic equation is $\"\"$ .

\

Substitute the values $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Thus, the solutions are $\"\"$ and $\"\"$ .

\

$\"\"$

\

Check:

\

Substitute the value of $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

The statement is true.

\

\

Substitute the value of $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

The statement is true.

\

\ \

\

Substitute the value of $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

The statement is true.

\

$\"\"$

\

The solutions are $\"\"$ and $\"\"$ .