Answered

Factoriser :

(2t + 1)² + 4t ²- 1

 

Merci beaucoup

Sagot :

DROOPETTE
(2t+1)²+4t²-1
=(2t+1)(2t+1)+(2t+1)(2t-1)
=(2t+1)(2t+1+2t-1)
=4t(2t+1)
(2t+1)²+4t²-1
=(2t+1)(2t+1)+(2t+1)(2t-1)
=(2t+1)(2t+1+2t-1)
=4t(2t+1)