RÉPONSE :
21x - 2x au carré
Bonjour,
A(x)=x*(21-2x)
x*21 = 21x
x*2x = 2x²
= 21x -2x²
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RÉPONSE :
21x - 2x au carré
Verified answer
Bonjour,
A(x)=x*(21-2x)
x*21 = 21x
x*2x = 2x²
= 21x -2x²