Bonjour
x^3 = 125
x^3 = 25 * 5
x^3 = 5 * 5 * 5
x^3 = 5^3
x = 5
x^3 = -27
x^3 = (-3)^3
x = -3
x^3 = 0
x = 0
x^3 = 64
x^3 = 4^3
x = 4
x^3 = -343
x^3 = (-7)^3
x = -7
x^3 + 8 = 0
x^3 = -8
x^3 = (-2)^3
x = -2
Résoudre :
1/x = 9
x = 1/9
1/x = -1/4
x = -4
1/x = 6/11
x = 11/6
1/x = -5
x = -1/5
1/x + 8/7 = 0
1/x = -8/7
x = -7/8
1/x - 4/7 = 0
1/x = 4/7
x = 7/4