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Sxnxestyles
@Sxnxestyles
May 2019
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Bonjour c'est assez urgent, c'est sur la double distributivité, il faut que je développe et que je réduise (si possible) ces calculs :
(ab+1) × (a + b)
-1-a × (3-a)
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Verified answer
Bonjour,
(ab+1) (a + b) =
ab*a + ab*b + 1*a +1*b
a²b + ab²+a+b
-1-a(3-a) =
-1 -a*3 -a*-a =
-1-3a+a² =
a²-3a-1
* = multiplier
0 votes
Thanks 1
sxnxestyles
Ahhh merci beaucoup !!
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Verified answer
Bonjour,(ab+1) (a + b) =
ab*a + ab*b + 1*a +1*b
a²b + ab²+a+b
-1-a(3-a) =
-1 -a*3 -a*-a =
-1-3a+a² =
a²-3a-1
* = multiplier