Bonjour, pourriez vous m'aider s'il vous plait, je suis bloqué et je dois le rendre pour aujourd'hui .

Réponse :

Explications étape par étape

Bonjour

A = (-2)^3 + 4 x 2^4 - 3^2

A = -8 + 4 x 16 - 9

A = -8 - 9 + 64

A = -17 + 64

A = 47

B = (4 - 5^3)/(2^3 x 2 + 3 + 5^2)

B = (4 - 125) / (8 x 2 + 3 + 25)

B = (-121)/(16 + 28)

B = (-11 x 11)/(44)

B = (-11 x 11)/(11 x 4)

B = -11/4

Exercice 4 :

E = 3/7 x 5/4

E = (3 x 5)/(7 x 4)

E = 15/28

F = -8 x 9/-32

F = (-8 x 9)/(-8 x 4)

F = 9/4

G = -49/63 x 9/-28

G = -9/63 x 49/-28

G = 9/(9 x 7) x (7 x 7)/(7 x 4)

G = 1/7 x 7/4

G = 1/4 x 7/7

G = 1/4

H = 1/5 : (-3)

H = 1/5 x (-1/3)

H = -1/15

I = (-2/9)/(-5/3)

I = 2/9 x 3/5

I = 3/9 x 2/5

I = 1/3 x 2/5

I = 2/15

J = 22/7 / (-11)

J = 22/7 x -1/11

J = 22/11 x -1/7

J = (11 x 2)/11 x -1/7

J = 2 x -1/7

J = -2/7

Exercice 5 :

K = 13/7 + (-8/7 : -4/5)

K = 13/7 - 8/7 x -5/4

K = 13/7 + 8/4 x 5/7

K = 13/7 + 2 x 5/7

K = 13/7 + 10/7

K = (13 + 10)/7

K = 23/7

L = (2 - 5/8) x 3/4

L = (16/8 - 5/8) x 3/4

L = 11/8 x 3/4

L = (11 x 3)/(8 x 4)

L = 33/32