Question

9x²+16y²+4z-24xy+16yz-12xz factorise it

Answer 1

${(3x + - 4y + - 2z)}^{2} \\ \\ \\ as \: \: \: \: \: {x + y + z}^{2} = {x}^{2} + {y}^{2} + {z}^{2} + 2xy + 2yz + 2xz$