The Solution:
The given expression is
[tex]\begin{gathered} t^2-6 \\ \text{where t=-4} \end{gathered}[/tex]Substituting -4 for t in the expression above, we get
[tex]\begin{gathered} (-4)^2-6 \\ 16-6 \\ 10 \end{gathered}[/tex]Therefore, the correct answer is 10.
