weisenbergertay5779
25.06.2021 •
Mathematics
On considère l'expression D=(2x-7)^2-36x^2. 1) Développer et réduire D. 2) Factoriser D. 3) Résoudre l'équation (8x-7)(-7-4x)=0 . 4) Calculer la valeur exacte de D quand x=\sqrt{2} .
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