Transcription of Équations : exercices I Exercice n°3 R I Exercice n°1
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Équations : exercices I Exercice n°3 R I Exercice n°1
I Exercice n 3. quations : exercices R soudre dans R les quations suivantes : 1 2. I Exercice n 1 1. =2 2. =3. x x+1. 3 5 . 1. x = 0 2. 2x + 3 = 0. 2 3 2x + 1 7x + 1. 3. =0 4. =2. 3x 2 2x 3. 1 2. 3. 3x 5 = x 4. x+1 = x 3. 2 3 x2 2x x2 9. 5. =0 6. =0. 2+x 3x 1 1 1. 5. 2x + = 0 6. 2 (x 3) = (3x 2) + x 2 4 2 2 1 1 2. 7. =2 8. =0. 3 2x x+1 x 1. 1 2x . 7. 2x 3(x + 1) = 8. 2(x 1) = 2(x + 1) 1 9 x 1 x 2. 2 9. = 5 x 10. =0. x+1 x 2 x 1. x+1 x+2 x+3. 9. x 3(x + 1) = 2 x 10. + + = 12x 1. 2 3 4 x2 1 4. 11. = 1+ 12. 2x 7 =. x 1 x 1 2x 7. I Exercice n 2. R soudre dans R les quations suivantes : x2 + 4x 3 9x2 25. 13. =1 14. =0. 1. (x + 1)(3x 2) = 0 2. 2(1 x)(2x 5) = 0 x2 1 (x + 2) (3x + 5). x+2 x 3. (x + 1)2 (x 3) = 0 4. (4x 2) (7x + 1) (12x 6) = 0 15. + =0. x x 2. 5. (2x 1)2 = (2x 1) (x + 3) 6. (3x + 1)2 (x + 1)2 = 0. Solutions 7. (2x 1) (x + 1) = 5x + 5 8. (x + 1)2 (2x + 2) = 0 I Solutions Exercice n 1. ( ). 10 3.. 1. S = 2. S = . 9. (x 1)2 = (2x + 1)2 10. 4x2 9 2 (2x 3) + x (2x 3) = 0 9 2. 3.
Seconde - Équations 1 ©P.Brachet -www.xm1math.net. 7. S =? S = (4+3 p 2 2) 8. S = n 7+4 p 3 o 9. S =
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