Sagot :
Affirmation 1 = Vraie car 6300 = 9x700 = 3x3x14x50 = 3x3x7x2x5x10 = 3x3x7x2x5x5x2
Affirmation 2 = Fausse car 2x(-1)x(-1)-4 = -2 et -1+3 = 2
Affirmation 2 = Fausse car 2x(-1)x(-1)-4 = -2 et -1+3 = 2