Bonjour
2*2 -2 = 2 2*-5 -2 = -10 -2 =-12 2*-3 -2 =-6-2 = -8
-3*2+1 = -6+1 = -5 -3*-5 +1 = 15-1 = 14 -3*-3 +1 = 9+1 = 10
-3( 2+4) = -3* 6 = -24 -3( -5 +4) = -3*-1 = 3 -3( -3+4) = -3* 1 = -3
-2( 4-2) = -2* 2 = -4 +5 ( 4+5) = 5*9 = 45 3( 4 +3) = 3*7 = 21
-(-5) [ 4 -(-5)] -(-3) [ 4 -(-3)]
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Bonjour
2*2 -2 = 2 2*-5 -2 = -10 -2 =-12 2*-3 -2 =-6-2 = -8
-3*2+1 = -6+1 = -5 -3*-5 +1 = 15-1 = 14 -3*-3 +1 = 9+1 = 10
-3( 2+4) = -3* 6 = -24 -3( -5 +4) = -3*-1 = 3 -3( -3+4) = -3* 1 = -3
-2( 4-2) = -2* 2 = -4 +5 ( 4+5) = 5*9 = 45 3( 4 +3) = 3*7 = 21
-(-5) [ 4 -(-5)] -(-3) [ 4 -(-3)]
2a-2= 2
-3a+1= -5
-3 (a+4)= -18
-a (4-a)= -4
Pour à= -5
2a-2= -12
-3a+1= 16
-3 (a+4)=3
-a (4-a)= 45
Pour à=-3
2a-2= -8
-3a+1= 10
-3 (a+4)= -3
-a (4-a)= 21
J’espère que c’est bon j’ai fais de mon mieux je pense.