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afafgebrail
@afafgebrail
June 2021
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urgent aidez moi svp
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maudmarine
Verified answer
1)
R = abc
R = (- 5) * (- 8) * ( - 3)
R = 40 * (- 3)
R = - 120
S = 2a - 3b
S = 2 * (- 5) - 3 * (- 8)
S = - 10 + 24
S = 14
U = ab + cd
U = (- 5) * (- 8) + (- 3) x 7
U = 40 - 21
U = 19
V = a/b +
a - d
b - c
V = - 5/- 8 +
- 5 - 7
- 8 - (- 3)
V = 5/8 -
12
8 + 3
V = 5/8 - 12/11
V = 55/88 - 96/88
V = 41/88
2)
A = - 2 x (- 1 + 3) - 15
A = - 2 x (2) - 15
A = - 4 - 15
A = - 19
Il a fait une erreur car (- 1 + 3) = 2 et non pas - 4
Y = - 10 - 2 x (- 7) + 45 : (- 9)
Y = - 10 + 14 - 5
Y = - 1
Q = 21 + 5 x (3 - 7)
Q = 21 + 5 x (- 4)
Q = 21 - 20
Q = 1
Les deux résultats sont les opposés
1 votes
Thanks 0
afafgebrail
merci
afafgebrail
les petites etoile ca veut dire kwa
chlegros
1)
R=-5x-8x-3=-120
S=2x-5-3(-8)=-10+24=14
U=(-5x-8) + (-3x7)=40-21=19
V=-5/-8 + (-5-7)/(-8--3)=5/8 + (-12/-5)=5/8-12/5
2)
-1+3=2 et non pas -4
A=-21
3)
1er -10 + 14 -5 = -1
2nd 21 - 20 = 1
c ets donc différent
0 votes
Thanks 0
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Verified answer
1)R = abc
R = (- 5) * (- 8) * ( - 3)
R = 40 * (- 3)
R = - 120
S = 2a - 3b
S = 2 * (- 5) - 3 * (- 8)
S = - 10 + 24
S = 14
U = ab + cd
U = (- 5) * (- 8) + (- 3) x 7
U = 40 - 21
U = 19
V = a/b + a - d
b - c
V = - 5/- 8 + - 5 - 7
- 8 - (- 3)
V = 5/8 - 12
8 + 3
V = 5/8 - 12/11
V = 55/88 - 96/88
V = 41/88
2)
A = - 2 x (- 1 + 3) - 15
A = - 2 x (2) - 15
A = - 4 - 15
A = - 19
Il a fait une erreur car (- 1 + 3) = 2 et non pas - 4
Y = - 10 - 2 x (- 7) + 45 : (- 9)
Y = - 10 + 14 - 5
Y = - 1
Q = 21 + 5 x (3 - 7)
Q = 21 + 5 x (- 4)
Q = 21 - 20
Q = 1
Les deux résultats sont les opposés
R=-5x-8x-3=-120
S=2x-5-3(-8)=-10+24=14
U=(-5x-8) + (-3x7)=40-21=19
V=-5/-8 + (-5-7)/(-8--3)=5/8 + (-12/-5)=5/8-12/5
2)
-1+3=2 et non pas -4
A=-21
3)
1er -10 + 14 -5 = -1
2nd 21 - 20 = 1
c ets donc différent