9000088806

Level: 
Project ID: 
9000088806
Accepted: 
1
Clonable: 
0
Easy: 
0
Identify a correct expression which should be placed to the starred position in the following expression to obtain a valid statement. \[ \frac{mn} {m^{2} + 2mn + n^{2}} = \frac{*} {2m(m + n)^{3}} \]
\(2m^{2}n(m + n)\)
\(2mn(m + n)\)
\(2m(m + n)\)
\(2m(m + n)^{2}\)