Question 2
Consider these two operations: $$
\begin{align*} a\,\blacklozenge\,b &= a^2 - b^2 \\ a \star b &= (a - b)^2 \end{align*}
$$
Compute the value:
$$
(5\,\blacklozenge\,3) \star 6
$$
\begin{align*} a\,\blacklozenge\,b &= a^2 - b^2 \\ a \star b &= (a - b)^2 \end{align*}
$$
Compute the value:
$$
(5\,\blacklozenge\,3) \star 6
$$