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chloebmx
@chloebmx
June 2021
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Développer, puis réduire chaque expression.
A)3(x-2)+2x
B)-3(x+2)+5(x-3)
C)(-7+a)x(-4)+6(11-a)+5a
D)-2(4b-5)-(2+3b)+3(4b-1)
Si vous pourvues m aider ce serait super sympa! Merci d avance!
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winner123
Verified answer
Bonsoir
A)3(x-2)+2x = 3x - 6 +2x =
5x -6
B)-3(x+2)+5(x-3) = - 3x -6 +5x -15 =
2x -21
C)(-7+a)x(-4)+6(11-a)+5a = 28 -4a + 66 - 6a +5a =
-5a +94
D)-2(4b-5)-(2+3b)+3(4b-1) = -8b +10 -2 -3b +12b - 3 =
b +5
Si vous pourvues m aider ce serait super sympa! Merci d avance!
1 votes
Thanks 2
chloebmx
Merci !
bouki83
A)
3(x-2)+2x=3x-6+2x
=5x -6
B)
-3(x+2)+5(x-3)= -3x-6+5x-15
= 2x-21
C)
(-7+a)x(-4)+6(11-a)+5a= -7×(-4) -4a+66-6a+5a
= 28+66-5a
= -5a +94
D)
-2(4b-5)-(2+3b)+3(4b-1)=-8b+10-2-3b+12b-3
= b +5
Si tu as besoin de plus d'explication n'hésite pas
0 votes
Thanks 1
chloebmx
merci !
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Verified answer
BonsoirA)3(x-2)+2x = 3x - 6 +2x = 5x -6
B)-3(x+2)+5(x-3) = - 3x -6 +5x -15 = 2x -21
C)(-7+a)x(-4)+6(11-a)+5a = 28 -4a + 66 - 6a +5a = -5a +94
D)-2(4b-5)-(2+3b)+3(4b-1) = -8b +10 -2 -3b +12b - 3 = b +5
Si vous pourvues m aider ce serait super sympa! Merci d avance!
3(x-2)+2x=3x-6+2x
=5x -6
B)
-3(x+2)+5(x-3)= -3x-6+5x-15
= 2x-21
C)
(-7+a)x(-4)+6(11-a)+5a= -7×(-4) -4a+66-6a+5a
= 28+66-5a
= -5a +94
D)
-2(4b-5)-(2+3b)+3(4b-1)=-8b+10-2-3b+12b-3
= b +5
Si tu as besoin de plus d'explication n'hésite pas