Répondre :
x-3 = -2x²+7x-3
2x²-6x = 0
x(2x-6) = 0
x = 0
ou
2x-6 = 0
2x = 6
x = 3
2x²-6x = 0
x(2x-6) = 0
x = 0
ou
2x-6 = 0
2x = 6
x = 3
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
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