Question

(+8) + (-3)=

(-2)²+{-12+ (8-7+7)-6}=

Answer 1

Resposta:

Oie!

Explicação passo-a-passo:

(+8) + (-3)=

8 - 3 =

5

(-2)²+{-12+ (8-7+7)-6}=

4 + {- 12 + (8) - 6} =

4 + {- 12 + 2} =

4 - 10 =

-6

$\left[\begin{array}{cccc}+&+&=&+\\+&-&=&-\\-&+&=&-\\-&-&=&+\end{array}\right]$