January 2021 0 110 Report
Bonjour, je bloque merci de votre aide. f(x)=-1/10x²+6/5x+9/2

Démontrez que f(x)=-1/10(x-6)²+81/10

En gros faut démontrer que -1/10x²+6/5x+9/2 = -1/10(x-6)²+81/10 mais je n'y arrive pas...

Merci de votre aide !!
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