Pré-álgebra Exemplos

$(7 x^{3} - 4 x^{2}) + (2 x^{3} - 4 x^{2})$

Etapa 1

Remova os parênteses.

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

Etapa 2

Some $7 x^{3}$ e $2 x^{3}$ .

$9 x^{3} - 4 x^{2} - 4 x^{2}$

Etapa 3

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

$9 x^{3} - 8 x^{2}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$