Álgebra Exemplos

$- 81 m^{2} - 17 m n + 15 n^{2} + 20 m^{2} + 3 m n - 17 n^{2} + 53 m^{2} + 18 m n + 7 n^{2}$

Etapa 1

Some $- 81 m^{2}$ e $20 m^{2}$ .

$- 61 m^{2} - 17 m n + 15 n^{2} + 3 m n - 17 n^{2} + 53 m^{2} + 18 m n + 7 n^{2}$

Etapa 2

Some $- 61 m^{2}$ e $53 m^{2}$ .

$- 8 m^{2} - 17 m n + 15 n^{2} + 3 m n - 17 n^{2} + 18 m n + 7 n^{2}$

Etapa 3

Some $- 17 m n$ e $3 m n$ .

$- 8 m^{2} + 15 n^{2} - 14 m n - 17 n^{2} + 18 m n + 7 n^{2}$

Etapa 4

Subtraia $17 n^{2}$ de $15 n^{2}$ .

$- 8 m^{2} - 2 n^{2} - 14 m n + 18 m n + 7 n^{2}$

Etapa 5

Some $- 2 n^{2}$ e $7 n^{2}$ .

$- 8 m^{2} + 5 n^{2} - 14 m n + 18 m n$

Etapa 6

Some $- 14 m n$ e $18 m n$ .

$- 8 m^{2} + 5 n^{2} + 4 m n$