Álgebra Exemplos

$(- 10 x^{2} + 9) + (8 x^{2} - 5 x + 7)$

Etapa 1

Remova os parênteses.

$- 10 x^{2} + 9 + 8 x^{2} - 5 x + 7$

Etapa 2

Some $- 10 x^{2}$ e $8 x^{2}$ .

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

Etapa 3

Some $9$ e $7$ .

$- 2 x^{2} - 5 x + 16$

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