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nadine07
@nadine07
May 2022
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Bonjour j ai besoin de votre aide. pourriez vous s il vous plaît m aider pour mon devoir de math de 3eme. merci bcp.
Résoudre les équations suivantes : a)(3x − 2)(5x-1)-(3x − 2)(3x - 4) = 0
b)(2x - 1)? -(x - 5)(2x-1) = 0
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johann4
a) (3x -2)(5x -1) -(3x -2)(3x-4)=0 (3x -2)(5x -1-3x +4)=0 (3x -2)(2x +4)=03x -2=0 2x+4=03x=2 2x= -4x=2/3 x= -2 a) S={2/3 ; -2}b) (2x -1)(2x -1) -(x -5)(2x -1)=0 (2x -1)(2x -1 -x +5)=0 (2x -1)(x +4)=02x -1=0 x +4=02x=1 x= -4x=1/2 b) S={1/2; -4}
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nadine07
Merci beaucoup pour ton aide
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