Pré-álgebra Exemplos

$4 x^{3} + 2 x^{2} - 4 x + 3$ e $7 x^{3} - 4 x^{2} + 7 x + 8$

Etapa 1

Some as expressões.

$4 x^{3} + 2 x^{2} - 4 x + 3 + 7 x^{3} - 4 x^{2} + 7 x + 8$

Etapa 2

Some $4 x^{3}$ e $7 x^{3}$ .

$11 x^{3} + 2 x^{2} - 4 x + 3 - 4 x^{2} + 7 x + 8$

Etapa 3

Subtraia $4 x^{2}$ de $2 x^{2}$ .

$11 x^{3} - 2 x^{2} - 4 x + 3 + 7 x + 8$

Etapa 4

Some $- 4 x$ e $7 x$ .

$11 x^{3} - 2 x^{2} + 3 x + 3 + 8$

Etapa 5

Some $3$ e $8$ .

$11 x^{3} - 2 x^{2} + 3 x + 11$