December 2020 0 76 Report
Bonjour svp aidez moi Exercice n° 3: Compléter les égalités

(x+....)² = ..... ....... + 25
(2x-....) ² = ......-12x +.....
(..... + .....)² = 9x² +...... +1

Exercice n°4 : Calculer en utilisant les identités remarquables

97 x 103 =
1001² = ......
(racine carré de 13 + racine carré de 6)(racine carré de 13 - racine carré de 6)=.........​
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