It is not solvable by that method, shanaid. You have to get all the numbers on the left, set them to equal zero, and factor.
which method is used to solve this equation. x^2-9x-4=6
I would factor, move the six over, then factor
i would move the -4 over so it would be
x^2-9x=6-4
that makes it easier.
then just solve it from there.