Bonjour;
x²+25/2-5/2x=25/2
x² -5/2x = 25/2 -25/2
x² -5/2x=0
x( x -5/2) =0
soit
x= 0
soit:
x-5/2 =0
x = 5/2
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Bonjour;
x²+25/2-5/2x=25/2
x² -5/2x = 25/2 -25/2
x² -5/2x=0
x( x -5/2) =0
soit
x= 0
soit:
x-5/2 =0
x = 5/2