$\"\"$

The equation is $\"\"$ .

$\"\"$ (Substitute f $\"\"$ )

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Add: $\"\"$ )

$\"\"$ (Absolute value of $\"\"$ )

$\"\"$

Compare the values, the equation is false. $\"\"$

The given number is not a solution to the equation.