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Sagot :

VINS

bonjour

a= 36 + 12x + x2

a = ( x + 6 )²

b=(2x + 9)2-(3x -4)

b = ( 2 x + 9 ) ( 2 x - 6 - 3 x +4 )

b = ( 2 x + 9 ) ( - x - 2 )

c= 25 + 16x2 + 40x

c = ( 4 x + 5 )²

d=(3x - 3)2 - 49

d = ( 3 x - 3 - 7 ) ( 3 x - 3 + 7 )

d = ( 3 x - 10 ) ( 3 x + 4 )

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