Exercice 6 Écris le plus simplement possible. A = 3 xa xb B = 3 x a + 3 x b D = 5 + 3 x b E = 5 x a + 3 + 2 G= 7 xa x b x 3 H = 7 + a x b + 3 J = (2,5 - 1) xa x
Mathématiques
juliaprl
Question
Exercice 6
Écris le plus simplement possible.
A = 3 xa xb
B = 3 x a + 3 x b
D = 5 + 3 x b
E = 5 x a + 3 + 2
G= 7 xa x b x 3 H = 7 + a x b + 3
J = (2,5 - 1) xa x b
C = 8 x a x2
F = 2 x 3 xa x (b x c)
1 = 3 X (2 x a + b) x 5
Écris le plus simplement possible.
A = 3 xa xb
B = 3 x a + 3 x b
D = 5 + 3 x b
E = 5 x a + 3 + 2
G= 7 xa x b x 3 H = 7 + a x b + 3
J = (2,5 - 1) xa x b
C = 8 x a x2
F = 2 x 3 xa x (b x c)
1 = 3 X (2 x a + b) x 5
1 Réponse
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1. Réponse mohayati2006
Réponse :
Explications étape par étape
A = 3 xa xb
=3abx²
B = 3 x a + 3 x b
=3x(a+b)
D = 5 + 3 x b
=5+3bx
E = 5 x a + 3 + 2
=5ax+5
=5(ax+1)
G= 7 xa x b x 3
=21abxx²
H = 7 + a x b + 3
=10+abx
J = (2,5 - 1) xa x b
=1.5abx²
C = 8 x a x2
=16ax²
F = 2 x 3 xa x (b x c)
=6abcx²x²
1 = 3 X (2 x a + b) x 5
=(6xa+3b)x5
=(30ax²+15bx)