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Bon jour j’ai deux calcule à faire pour demain mais j’y arrive pas pourriez-vous m’aider merci d’avance :(2t+1)(5t+2)-(2t+1)(3t-1) .

Sagot :

INEQUATION

Bonjour,

Factoriser:

(2t+1)(5t+2)-(2t+1)(3t-1) =(2t+1)(5t+2-3t+1)= (2t+1)(2t+3)

Développer :

(2t+1)(5t+2)-(2t+1)(3t-1)= 10t²+5t+4t+2-(6t²+3t-2t-1)=10t²+9t+2-6t²-t+1= 4t²+8t+3

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