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Développe A = 3z(-8z+3)
B =-5a(-5+5a)
C = (8-4z)x3z​


Répondre :

Bonjour;

A = 3z(-8z+3)

= -24z² +9z

B =-5a(-5+5a)

= 25a -25a²

C = (8-4z)x3z​

= 24z -12z²

Réponse:

A = 3z * -8z + 3z *3

= /24z^2 +9z

B= -5a * -5 + (-5a) * 5a

= 25a -25a^2

C= 8 * 3z + (-4z) * 3z

= 24z -12z^2