Bonjour j'ais vraiment besoin d'aide le plus vite possible pour ces calculs les voicis= Développer reduire

A= 3(4a-5b-6)-2(7-3a-6b)

B = 2 x (1 – 3 x) + 4 x2

C = 3(1 – 7 x) +( x – 1) × ( – x)

D = (2a + 2) – (a – 2)

E = 7 – ( – x – 5)+ 2

F = – ( – x2 + 2 x – 1) +( – x2 + 2 x – 4)


Je vous remercie d'avance
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