$\"\"$

The quadratic expression is $\"\"$ .

Re write the expression $\"\"$ .

To complete the square for a quadratic expression of the form $\"\"$ , So x = k, $\"\"$ .

1) To find $\"\"$ of b, the coefficient of k, $\"\"$ .

2) Square the coefficient of k, $\"\"$ .

3) Add the result above quadratic expression $\"\"$ , Then $\"\"$ .

The perfect square of the given trinomial $\"\"$ . $\"\"$

The perfect square of $\"\"$ .