Expand the following using the identity of \((a-b)^2\).
 
\((3m – \frac{5}{4n})^{2}\)
 
Answer:
 
The identity used to expand the given expression is iiii=iiii+ii.
 
\((3m – \frac{5}{4n})^{2}\) \(=\) iiiiiii+iiii