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Sagot :

AFTERSHOCK
x-3 = -2x²+7x-3
2x²-6x = 0
x(2x-6) = 0
x = 0
ou 
2x-6 = 0
2x = 6
x = 3
ISAPAUL
Bonjour
x-3= -2x²+7x-3
x-3-(-2x²+7x-3) = 0
2x² - 6x =0 
x(2x-6) = 0   pour x = 0 ou  x=6/2 = 3

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