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Par étape
A= 2×
×2
B= 5
+3+7
С= 9×
×(-2)
D= 7
+5-3-12
E=×(-5)×
F= 8-12+7-15-3+4
Par étape
A= 2×
B= 5
С= 9×
D= 7
E=
F= 8
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Verified answer
Bonjour,A = 2*2*y
= 4y
B = 8a+7b
C = 9*-2*x²
= -18x²
D = 7x-3x+5y-12y
= 4x-7y
E = a*b*-5
= -5ab
F = 8x²+4x²-12x-3x+7-15
= 12x²-15x-8
Verified answer
Bonjour :●A=2 × y ×2
A=4y
●B=5a+3a+7b
B=8a+7b
●C=9 × x² × (-2)
C=-18x²
●D=7x+5y-3x-12y
●D =4x-7y
●E=a×(-5)×B
●E=-5aB
●F=8x²-12x+7-15-3x+4x²
●F=12x²-15x-8
Bonne journée.