Question

please anyone Help me

please expand it

I will Mark You brainlist

and

follow you ​

Answer 1

${(x - 2y - 3z)}^{2} \\ {(x)}^{2} + {( - 2y)}^{2} + {( - 3z)}^{2} + 2[(x)( - 2y) + ( - 2y)( - 3z) + ( - 3z)(x)] \\ {x}^{2} + {4y}^{2} + {9z}^{2} + 2( - 2xy + 6yz - 3xz) \\ {x}^{2} + {4y}^{2} + {9z}^{2} - 4xy + 12yz - 6xz$

${\text {\huge{Hence,}}}$

[tex{\boxed{ \red{ \boxed{ \blue{ \large{{(x - 2y - 3z)}^{2} = {x}^{2} + {4y}^{2} + {9z}^{2} - 4xy + 12yz - 6xz }}}}}}[/tex]