Question

resolva as expressões numéricas a seguir ​

Answer 1

Resposta:

a) $\sqrt{144} - (\sqrt[3]{64}) . ( -3²)$ =

12 - 4 . (-9) =

12 + 36 = 48

b) - 3 . $\sqrt[6]{64}$ + [ ( -2 - 3 )² - 5² ] =

- 3 . 2 + [ (-5)² - 25 ] =

- 6 + [ 25 - 25 ] = - 6

c) 3⁻² . 1/3 - $\sqrt{1/9}$ =

1/9 . 1/3 - 1/3 =

1/27 - 1/3 = - 8 / 27

d) 2/5⁻² . 2/5³ : $\sqrt{25/4}$ =

25/4 . 8/125 : 5/2 =

200/500 : 5/2 = 400/2500

Answer 2

Explicação passo-a-passo:

A) √144 - (³√ 64).( - 3²) =

12 - ( 4). ( 9)=

12- 36=

- 24

B) - 3. 6^√64 + [( - 2 - 3)² - 5²] =

- 3. 2 + [ ( - 5)² - 25] =

- 6 + [ 25 - 25] =

- 6 + [ 0] =

- 6

C) 3¯². 1/3 - √1/9 =

1/9. 1/3 - 1/3 =

1/27 - 1/3 = mmc é 27

1/27 - 9/27=

-8/27

D) (2/5) ¯². ( 2/5)³ : √25/4=

25/4. 8/125 : 5/2=

200/500 : 5/2 =

200/500 :5/2=

200/500 : 2/5=

400/2500