Question
bonjour
Exercice 1 : Développe et réduis chaque expression:
A = (b + 4)(b + 3)
C = (3a+4)(5 - 6a)
B = (y + 3)(2y + 8)
D = (-7t + 8)(3-5t)
Merci
Exercice 1 : Développe et réduis chaque expression:
A = (b + 4)(b + 3)
C = (3a+4)(5 - 6a)
B = (y + 3)(2y + 8)
D = (-7t + 8)(3-5t)
Merci
Asked by: USER3881
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175 Answers
Answer (175)
Réponse:
a=(b+4)(b+3)
=b^2+7b+12
c=(3a+4)(5-6a)
=15a-18a^×+20-24a
=-18a^2 +20 -9a
b=(y+3)(2y+8)
=2y^2+8y+6y+24
=2y^2+24+14y
d=(-7t +8)(3-5t)
=-21t +35t^2 +24 -40t
=-61t +24 +35t^2