We have to evaluate the expressions.
We have to solve each operation in the correct order: first the operations within the parenthesis, and within them, first the powers, then the multiplication/quotients and lastly the adds/subtractions. Then, we apply the same sequence for the terms outside the parenthesis.
a)
[tex]\begin{gathered} 9^2\cdot2-4^2 \\ 81\cdot2-16 \\ 162-16 \\ 146 \end{gathered}[/tex]b)
[tex]\begin{gathered} \frac{2\cdot(10-2)}{2^2} \\ \frac{2\cdot8}{2^2} \\ \frac{2\cdot8}{4} \\ \frac{16}{4} \\ \\ 4 \end{gathered}[/tex]c)
[tex]\begin{gathered} 30-(3^2-8) \\ 30-(9-8) \\ 30-1 \\ 29 \end{gathered}[/tex]Answer: a) 146, b) 4 c) 29
