Aidez moi svp Calculer : (2x-1/3-1)(-1/3+5)-3(2x-1/3-1)

= ( 2 x ( - 1 / 3 ) - 1 ) ( - 1 / 3 + 5 ) - 3 ( 2 x ( - 1 / 3 ) - 1 )
= ( - 2 / 3 - 1 ) x 14 / 3 - 3 ( - 2 / 3 - 1 )
= - 5 / 3 x 14 / 3 - 3 x ( - 5 / 3 )
= - 70 / 9 + 5
= - 25 / 9