September 2022 1 49 Report
77 x désigne un nombre.
A = -5x² - 4x + 5
a. Vérifier que pour x = 2, on obtient A = -23.
b.
Laura
Pour x = -3, je
trouve A = 62.
Tom
je trouve
A = -52.
Que peut-on en penser? Justifier.
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