$\"\"$

The equation is $\"\"$ .

For any real number b and for any positive integer n, $\"\"$ .

$\"\"$

$\"\"$ (Subtract 9 from each side)

$\"\"$

Squaring on each side and eliminate square roots

$\"\"$

CHECK:-

To check the solution, substitute $\"\"$ in $\"\"$ .

$\"\"$

$\"\"$ (Power of $\"\"$ )

$\"\"$

18 = 0

The solution is false. $\"\"$

No solution.