Développer l'expression suivantes Svp : merci d'avance [tex](4t - 4) ^{2} + (3t + 3)(4t - 3)[/tex] ​

Bonsoir,

Développer:

(4t-4)² + (3t+3)(4t-3)= 16t²-16t-16t+16+12t²+12t-9t-9= 28t²-29t+7

Bonsoir,

E = (4t - 4)² + (3t + 3)(4t - 3)

E = (4t)² - 2(4t × 4) + 4² + 3t × 4t + 3t × (-3) + 3 × 4t + 3 × (-3)

E = 16t² - 2 × 16t + 16 + 12t² - 9t  + 12t - 9

E = 16t² - 32t + 16 + 12t² + 3t - 9

E = 28t² - 29t + 7

Bonne soirée !