Question

Calcule o valor das expressões
A) 20 - (1⁴ • 6 + 2³)
B) (2⁴ - 3 • 4) : 2 + 5² : 5
C)10² : 5² + 5 • 2² - 2³
D) {6² + 2 • [2³ + 2 • (3² • 1³)] -2} • 5
E) 55 - (√9 • √4 + 1)² + (4² + 3²) : 5² - 1
Por favor me ajudem é pra amanha

Answer 1

Explicação passo a passo:

A)

20 - (1⁴ • 6 + 2³)

1^4 = 1 * 1 * 1 * 1 = 1

2³ = 2 * 2 * 2 = 8

reescrevendo

20 - ( 1 * 6 + 8 )

20 - ( 6+ 8 )

20 - 14 = = 6 >>>>>>resposta

B)

(2⁴ - 3 • 4) : 2 + 5² : 5

C)

10² : 5² + 5 • 2² - 2³

10² = 10 * 10 = 100 >>>>

5² = 5 * 5 = 25 >>>>

2² = 2 * 2 = 4 >>>>

2³ =2 * 2 * 2 = + 8>>>>

reescrevendo

100 : 25 + 5 * 4 - 8 =

100 : 25 = 4 >>>>

5 * 4 = 20 >>>>

4 + 20- 8 =

+4 + 20 = + 24

+ 24 -8 = + 16 >>>>>resposta

D)

{6² + 2 • [2³ + 2 • (3² • 1³)] -2} • 5

6² = 6 * 6 =36>>>>

2³ = 2 * 2 * 2 = 8 >>>

3² = 3 * 3 = 9 >>>

1³ = 1 * 1 * 1 = 1 >>>

reescrevendo

{ 36 + 2 * [ 8 + 2 * ( 9 * 1 )] - 2} * 5 =

9* 1 = 9

{ 36 + 2 * [ 8 + 2 * 9 ] - 2 } * 5 =

2 * 9 = 18 >>>

{ 36 +2 * [ 8 + 18 - 2 } * 5 =

8 + 18 = + 26

+26 - 2 = + 24 >>>>

{ 36 + 2 * [ 24 ] * 5 =

2 * 24 = 48

{36 + 48} * 5

84 * 5 = 420>>>>>>>>>>>>resposta

E)

55 - (√9 • √4 + 1)² + (4² + 3²) : 5² - 1

V9 = V3² = 3 >>>>>

V4 = V2² = 2 >>>>

4² = 4 * 4 = 16 <<<<

3² = 3 * 3 = 9 >>>

5² =5 * 5 = 25 >>>

reescrevendo

55 - ( 3 * 2 + 1 )² + ( 16 + 9 ) : 25 - 1 =

3 * 2 = 6

6 + 1 = 7 >>>>

16 + 9 = 25 >>>>

reescrevendo

55 -( 7)² + ( 25 ) : 25 - 1 =

55- 49 + 25 : 25 - 1 =

25 : 25 = 1 >>>

55 - 49 + 1 - 1 =

elimina +1 com -1

55 - 49 = + 6 >>>>>resposta