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Sagot :

VINS

bonsoir

F = 4 ( x + 3 )  = 4 x + 12

G = 7 ( x - 2 ) =  7 x - 14

H = - 6 ( 3 x + 4 ) = - 18 x - 24

I = - 2 ( 5 - 4 x ) = - 10 + 8 x

J = 3 ( x + 5 ) + ( 2 x - 7 )

  =  3 x + 15 + 2 x - 7

  = 5 x + 8  

Réponse :

bonjour

Explications étape par étape :

( " * ) = multiplié par

F=4(x+3)

=4*x+4*3

=4x+12

G=7(x-2)

=7*x-7x2

=7x-14

H=-6(3x+4)

=-6*3x -6*4

= -18x -24

I=-2(5-4x)

= -2*5 - (-2*4x)

=-10+8x

J= 3(x+5) +2x-7

=3*x+3*5 +2x-7

=3x+15+2x-7

=5x+8

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