You can
put this solution on YOUR website!I hope I'm reading the problem correctly.
Solve for x:

Simplify the left side.

Substitute:

The bases (2) are equal, therefore, the exponents are equal, thus:

Subtract 6 from both sides.

Solve by factoring.

Apply the zero product principle.

and/or

If

then,

If

then,
Check:
x = -2

Simplify:

= 64 This checks.
x = 3

Simplify.

= 64 This checks.