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Sagot :

INEQUATION

Bonjour,

Factoriser:

9x²-64=0

9x²-8²=0

(3x-8)(3x+8)= 0

3x-8= 0  ou  3x+8= 0

x= 8/3           x= -8/3

S= { -8/3; 8/3 }

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