nine ^x- two * six ^x+ two * four ^x- two * two ^x+ one = zero
9 to the power of x minus 2 multiply by 6 to the power of x plus 2 multiply by 4 to the power of x minus 2 multiply by 2 to the power of x plus 1 equally 0
nine to the power of x minus two multiply by six to the power of x plus two multiply by four to the power of x minus two multiply by two to the power of x plus one equally zero