Question

9. Calcule a potência: *

(-4)3=

a) 16

b) - 64

c) 64

d) 12

​

Answer 1

→ Cálculo :

Regra de sinal :        

( - ) ( - ) = +  

( + ) ( + ) = +  

( - ) ( + ) = -  

( + ) ( - ) = -

⇔ Alternativa correta Letra B

${ \boxed{\begin{array}{lr} {(-4)^{3} =} \\\\{(-4)\times(-4)\times(-4)=}\\\\{(+16)\times(-4)=}\\ \\ \boxed{\red{ -64}} \\ \end{array}}}$