Suppression de parenthèses A = 5+ (2x +3) = B = (4x +2)+(3x + 6) = C = (2x +3) - (7* - 5) = D = (6 + 2x) - (-6x + 4) = E = 3(4x - 5) + 4(7 - 3x) = F = (4x + 2)
Mathématiques
pinaschenelle
Question
Suppression de parenthèses
A = 5+ (2x +3) =
B = (4x +2)+(3x + 6) =
C = (2x +3) - (7* - 5) =
D = (6 + 2x) - (-6x + 4) =
E = 3(4x - 5) + 4(7 - 3x) =
F = (4x + 2) - 5(2x - 4) =
A = 5+ (2x +3) =
B = (4x +2)+(3x + 6) =
C = (2x +3) - (7* - 5) =
D = (6 + 2x) - (-6x + 4) =
E = 3(4x - 5) + 4(7 - 3x) =
F = (4x + 2) - 5(2x - 4) =
1 Réponse
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1. Réponse arwa1949
Réponse:
A=5+(2x+3)
=5+2x+3
A =2x+8
B=(4x+2)+(3x+6)
=4x+2+3x+6
B=7x+8
C=(2x+3)-(7x-5)
=2x+3-7x+5
C=-5x+8
D=(6+2x)-(-6x+4)
=6+2x+6x-4
D=8x+2
E=3(4x-5)+4(7-3x)
=12x-15+28-12x
E=13
F=(4x+2)-5(2x-4)
=4x+2-10x+20
F=-6x+22