Question

X²+16y²+9z²-8xy+24yz-6zx

Answer 1

${x}^{2} + 16 {y}^{2} + 9{z}^{2} - 8xy + 24yz - 6xz$

${( - x)}^{2} + {(4y)}^{2} + {(3z)}^{2} + 2( - x)(4y) + 2(4y)(3z) + 2(3z)( - x)$

$using \\ {x}^{2} + {y}^{2} + {z}^{2} + 2xy + 2yz + \\ 2xz = (x + y + z) {}^{2}$

${( - x + 4y + 3z) }^{2}$