Bonjour, besoin aide pour DM A= (2x+1)(5x+2)+(2x+1)(6x+3)
B= (2=3x-2)(8x+1)-(8x+1)(5x+6)
C = (8x-2)²-(9x+3)²

Développer A, B, C
Factoriser A, B, C

Résoudre équations ci dessous

(5x+2)(8x-1)=0
4(2x+5)-5(2x-6)=0
(2x+6)(3x+5)=(3x+3)(2x-5)
15x+8 = 9x-4

Merci d'avance
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