math
posted by
Riana
.
point of symmetry?
2(x7)(X+3)
and vertex?

math 
Steve
This is a parabola. The axis of symmetry is midway between the roots, or the line
x = 2
There is no point of symmetry, just an axis.
The vertex is at (2,50)

math 
Riana
but the anwer is (3,0)(7,0)
how can i get that?