MADLINEPURIE1976 MADLINEPURIE1976 27-09-2022 Mathématiques Answered montrer que: {3x}^{2} + {2y}^{2} + {z}^{2} + 2xz + 2yz - 2x - 2y + 5 = 03x2+2y2+z2+2xz+2yz−2x−2y+5=0
