……????????????????…….?????
![class=](https://pt-static.z-dn.net/files/d69/87062ee1faec09edb9586b59f23c794b.png)
Resposta:
1 - B) 5
2 - E) 6
|
|
|
\/
2 (- 3)^3 + k (- 3)² = - 54 + 9k
9k = 54
k = 6