I need help with some algebra !!

Here is the problem: find the Vertex of the Parabola y= -2(x-2)^2+10

I need the Vertex. ( I got 1.99?) x= 2.0 ?

Then I have to find the horizontal intercepts of the Parabola where y = 0.

Then I have to put it in factored form of the parabola in Form y = a( x - x1 )( x - x2 ))