Question 1147942
.
<pre>

The correct  <U>ANSWER</U>  is :  " the last term to make  {{{x^2 - x}}}  a perfect square is  {{{1/4}}} ".



<U>CHECK</U>.   {{{x^2 - x + 1/4}}} = {{{(x-1/2)^2}}}.
</pre>