Réponse :
Bonsoir
Explications étape par étape
X = 7^2 - 4 * 6 * 10
X = 49 - 240
X = -191
Y = 3/4 * 5/3 - 1/6
Y = (3*5/4*3) - 1/6
Y = 5/4 - 1/6
Y = 30/24 - 4/24
Y = 26/24
Y = (13*2)/(12*2)
Y = 13/12
Z = (3/4-5/6) : (1 + 7/3)
Z = (18/24 - 20/24) : ( 3/3 + 7/3)
Z = (-2/24) : (10/3)
Z = -1/12 * 3/10
Z = (-1*3)/(4*3*10)
Z = -1/40
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Réponse :
Bonsoir
Explications étape par étape
X = 7^2 - 4 * 6 * 10
X = 49 - 240
X = -191
Y = 3/4 * 5/3 - 1/6
Y = (3*5/4*3) - 1/6
Y = 5/4 - 1/6
Y = 30/24 - 4/24
Y = 26/24
Y = (13*2)/(12*2)
Y = 13/12
Z = (3/4-5/6) : (1 + 7/3)
Z = (18/24 - 20/24) : ( 3/3 + 7/3)
Z = (-2/24) : (10/3)
Z = -1/12 * 3/10
Z = (-1*3)/(4*3*10)
Z = -1/40