Question

Resolvendo a expressão ( - 2 )^3 : √16 + ( - 2 ) x ( - 3 )^2 obtemos :
A ) - 21
B ) - 20
C ) - 21
D ) - 22
E ) - 23

Answer 1

3) ( - 2 )³ : √16 + ( - 2 ) x ( - 3 )²

( -2 x - 2 x - 2) : 4 + (- 2) x (- 3 x - 3)

- 8 : 4 - 2 x  9

- 2 - 2 x  9

- 2 - 18

- 20

5) ( - 5)⁰ + ( - 5)¹ + ( - 5)²

1 - 5 + 25

26 - 5

+ 21