DISTRIBUTIVITE
a . 2 X (3x X 3)
b . (5 X x - 2) X 8
c . (6 + 4 X x) X 2
d . 3 + (x + 5 )
a . 2 X (3x X 3)
b . (5 X x - 2) X 8
c . (6 + 4 X x) X 2
d . 3 + (x + 5 )
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Réponse :
A = 18x
B = 40x - 16
C = 12 + 8x
D = x + 8
Explications étape par étape :
A = 2 X (3x X 3)
= 2 X 9x
= 18x
B = (5 X x - 2) X 8
= (5x - 2) X 8
= 5x X 8 - 2 X 8
= 40x - 16
C = (6 + 4 X x) X 2
= (6 + 4x) X 2
= 6 X 2 + 4x X 2
= 12 + 8x
D = 3 + (x + 5)
= 3 + x + 5
= x + 3 + 5
= x + 8