Bonjour
Résoudre dans R Log2(3x²+x)=log2¹¹⁴
lol (3x^2 + x)/log 2 = log 114 / log 2
Log (3x^2 + x) = log 114
3x^2 + x = 114
3x^2 + x - 114 = 0
delta = 1^2 - 4 * 3 * (-114)
Delta = 1 + 1368
Delta = 1369
VDelta = 37
x1 = (-1 - 37)/(2 * 3) = -38/6 = -19/3
x2 = (-1 + 37)/6 = 36/6 = 6
