Find the zeros,equation of axis of symmetry and the coordinates of the vertex

I wasnt sure what to do for this one since it was the other way around

g(x)=(x-10)(2-x)

g(x)=(5-x)(5+x)

Determine the maximum or minimum Value

g(x)=(7-x)(x+2)

g(x)=(2x+3)(8-x)

x^2+7x+10