The Solution:
The correct answer is [option D]
Given:
[tex]x^2+x[/tex]
We are asked to find what must be added to make the given expression a perfect square.
Step 1:
Divide the coefficient of x by 2.
Square the result to get the required solution.
[tex]\begin{gathered} \text{ The coefficient of x is 1.} \\ So, \\ (\frac{1}{2})^2=\frac{1}{4} \end{gathered}[/tex]
Therefore, the correct answer is 1/4 [option D]
