Aider moi svp je n'y arrive pas. Développer et réduire :
A = (x+4)(x+3)
B = (y+3)(2y+8)
C = (y+3)(2y+8)
D = (-7t+8)(3-5t)
Merci à ceux qui m'aideront :)
A = (x+4)(x+3)
B = (y+3)(2y+8)
C = (y+3)(2y+8)
D = (-7t+8)(3-5t)
Merci à ceux qui m'aideront :)
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Verified answer
BonsoirA = (x+4)(x+3) = x² + 3x +4x +12 = x² +7x +12
B = (y+3)(2y+8) = 2y² +8y +6y +24 = 2y² +14y +24
C = (y+3)(2y+8)= c'est la même
D = (-7t+8)(3-5t) = - 21t + 35t² + 24 - 40t =35t² - 61t +24
Verified answer
Développer et réduire :A = (x + 4) (x + 3)
A = x² + 3x + 4x + 12
A = x² + 7x + 12
B = (y + 3) (2y + 8)
B = 2y² + 8y + 6y + 24
B = 2y² + 14y + 24
C = (y + 3) (2y + 8)
C = 2y² + 8y + 6y + 24
C = 2y² + 14y + 24
B = C
D = (-7t + 8) (3 - 5t)
D = -21t + 35t² + 24 - 40t
D = 35t² - 61t + 24