Question

Evaluate the expression (3d+9)^2-64 where d=1

Answer 1

`\begin{gathered} \Rightarrow(3d+9)^2-64,\text{ where d=1} \\ \Rightarrow(3*1+9)^2-64 \\ \Rightarrow(3+9)^2-64 \\ \Rightarrow12^2-64 \\ \Rightarrow144-64 \\ \Rightarrow80 \end{gathered}`