[tex](\frac{1}{2} - \frac{3}{4})^{2} + \frac{5}{10}[/tex] # Make the denominators in the grouped expression the same
[tex](\frac{2}{4} - \frac{3}{4})^{2} + \frac{5}{10}[/tex] # Subtract
[tex](\frac{-1}{4})^{2} + \frac{5}{10}[/tex] # Square
[tex]\frac{1}{16} + \frac{5}{10}[/tex] # Make the denominators the same
[tex]\frac{10}{160} + \frac{80}{160}[/tex] # Add
[tex]\frac{90}{160}[/tex] # Simplify
[tex]\frac{9}{16}[/tex]
Hope this helps!
