Álgebra Exemplos

$- 6 m^{2} n^{2} + 3 m n + 4 m n + 13 m^{2} n^{2} + 9$

Etapa 1

Some $- 6 m^{2} n^{2}$ e $13 m^{2} n^{2}$ .

$7 m^{2} n^{2} + 3 m n + 4 m n + 9$

Etapa 2

Some $3 m n$ e $4 m n$ .

$7 m^{2} n^{2} + 7 m n + 9$