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Sagot :

VINS

bonjour

A = ( 3 x  - 2 )² - 64

A =  9 x² - 12 x + 4 - 64

A =  9 x² - 12 x - 60

A = ( 3 x - 2 - 8 ) ( 3 x-  2 + 8 )

A = ( 3 x - 10 ) ( 3 x + 6 )

A = 0  quand  x = 10/3 ou - 6/3 = - 2

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