Question 1118619
.
<pre>
y = {{{4x^2 - 4x + 1}}} = {{{(2x-1)^2}}}.


The root is  x = {{{1/2}}} = 0.5.   It is only one (merged) root.


The coordinates of the vertex are  (x,y) = (0.5,0).
</pre>


<U>Be aware</U>:  &nbsp;&nbsp;The answer by &nbsp;@josgaritmetic  &nbsp;&nbsp;<U>i s  &nbsp;&nbsp;i n c o r r e c t</U>.