Question

Efectúa:
(2an+m) ² + (2m+na) ²

Answer 1

Productos notables.

$(2an+m)^{2} +(2m+na)^{2} = 4a^{2}n^{2} +m^{2} +4anm+4m^{2}+ n^{2}a^{2}+4mna$

$4a^{2}n^{2} +m^{2} +4anm+4m^{2}+ n^{2}a^{2}+4mna = 5a^{2}n^{2}+5m^{2} +8amn$