Álgebra Exemplos

$(5 x^{2} - 3 x + 7 x) + (9 x^{2} + 2 x^{2} + 7 x)$

Etapa 1

Remova os parênteses.

$5 x^{2} - 3 x + 7 x + 9 x^{2} + 2 x^{2} + 7 x$

Etapa 2

Some $5 x^{2}$ e $9 x^{2}$ .

$14 x^{2} - 3 x + 7 x + 2 x^{2} + 7 x$

Etapa 3

Some $14 x^{2}$ e $2 x^{2}$ .

$16 x^{2} - 3 x + 7 x + 7 x$

Etapa 4

Some $- 3 x$ e $7 x$ .

$16 x^{2} + 4 x + 7 x$

Etapa 5

Some $4 x$ e $7 x$ .

$16 x^{2} + 11 x$