can someone simplify this? plzzz help :(

Answer:
[tex]-108 \frac{1}{2}[/tex]
Step-by-step explanation:
[tex]-4(4-1)^3+7(\frac{1}{2})^2-\frac{1}{4}(3^2)=[/tex]
[tex]-4(27)+7(\frac{1}{4})-\frac{1}{4}(9)=[/tex]
[tex]-108+\frac{7}{4}-\frac{9}{4}=[/tex]
[tex]-108-\frac{2}{4}=[/tex]
[tex]-108 \frac{1}{2}[/tex]
Hope this helps!