bonjour,
soit x
(x+1)
(x+2)
x²+ (x+1)²+(x+2)² = 3269
x²+x²+2x+1+x²+4x+4 = 3269
3x²+6x+5-3269 = 0
3x²+6x-3264 = 0
b²-4ac = 6²-4(3*-3264) = 36+39168 = 39204
Δ>0 2solutions
(-b-√Δ)/2a = (-6-198)/6 = -34
(-b+√Δ)/2a = (-6+198)/6 = 32
-34,-33,-32
32,33,34
(-34)²+(-33)²+(-32)² = 3269
32²+33²+34² = 3269