## Algebra: A Combined Approach (4th Edition)

9$n^{2}$ + 30nm + 25$m^{2}$
$( 3n + 5m )^{2}$ binomal squared $( 3n )^{2}$ + 2 ( 3n ) ( 5m ) + $( 5m )^{2}$ 9$n^{2}$ + 30nm + 25$m^{2}$