Question

3) Resolva as expressões.

a. (7²-4³ : 8²) : 2⁴ =
b. (2⁶ + 3⁴ . 8³) . 10² =

4) Calcule:

a. ( 12⁸ )¹⁵
b. [( 8¹²)⁹]⁵
​

Answer 1

Resposta:

3-a)(7²-4³ : 8²) : 2⁴ =

(49-2⁶: 2⁶):2⁴=

(49-1): 2⁴

48

2⁴

48 ( querenta e oito dezesseis avos)

16

3

b) (2⁶ + 3⁴ . 8³) . 10² =

(2⁶• 81•2⁹)• 100

(81•2¹⁵)•100

8100•2¹⁵

8100•32768

265420800

4-a) ( 12⁸ )¹⁵. b)[( 8¹²)⁹]⁵

(8¹⁰⁸)⁵

12 ⁸x¹⁵. 8⁵⁴⁰

12⁸x¹⁵