Answer:
Presumably you want to factor this, as there is no full equation to solve.
In this case you can divide both terms by x, giving you:
x(x - 2).
If you want to factor it into binomials, that's easy enough, as this is very close to being a difference of squares:
(x + x√2)(x - x√2)
You could just factor x out of both terms as well, giving you
x(x - 2)