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leaptr
@leaptr
June 2021
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Bonjour j'aurais besoin de votre aide pour ces exercices svp merci d'avance
exercice n° 1 Factoriser les expressions suivantes.
1. 49x2 - 16
2. 25x2 - 81
3. 9x2 - 49
Exercice n° 2 Développer les expressions suivantes.
1. (6x - 6)(6x +6)
2. (60 - 7)(6x + 7)
3. (8x - 5)(8x + 5)
Exercice n° 3 Factoriser les expressions suivantes.
1. A = 212 - 28x2
3. C = 7x2 + 8.1
2. B= 15a + 406
Exercice n° 4 Résoudre les équations suivantes
1. 3.x = -1
3. -112-8= -6
2. - 12 = -11
Exercice n° 5 Résoudre les équations suivantes
1. (5x + 5)(2x - 6) = 0
2. (3x + 3)(4x + 20) = 0
3. (5x +25)(3x - 6) = 0
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