Développe chaque expression
A = 5 x (a + 9)
B = 3 x (x + 5)
C = 3x x(x + 5)
D = 3 (-4 + x)
E = -w (-1 + w)
F = (11 + c) x 7
G = -4 (7 + u)
H = -2y (3y + 5)
I = -2 (5x -1)
J = -3a (6 -5a)
merci à vous :))
A = 5 x (a + 9)
B = 3 x (x + 5)
C = 3x x(x + 5)
D = 3 (-4 + x)
E = -w (-1 + w)
F = (11 + c) x 7
G = -4 (7 + u)
H = -2y (3y + 5)
I = -2 (5x -1)
J = -3a (6 -5a)
merci à vous :))
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Réponse :
Explications étape par étape :
Attention, on peut confondre la lettre x et le signe multiplier (X).
A = 5 x (a + 9)
A = 5ax + 45
B = 3 x (x + 5)
B = 3x² +15x
C = 3x x(x + 5)
C = 3x² +15x
D = 3 (-4 + x)
D = -12 + 3x
E = -w (-1 + w)
E = + w -w²
F = (11 + c) x 7
G = -4 (7 + u)
G = -28 -4u
H = -2y (3y + 5)
H = -6y² -10y
I = -2 (5x -1)
I = -10x + 2
J = -3a (6 -5a)
J = -18a + 15a²