Question

${(x - 2y - 3z)}^{2}$
Write in Expanded Form​

Answer 1

Answer:

x²+4y²+9z²-4xy-6xz+12yz

Step-by-step explanation:

(x-2y-3z)²

Using identity (x-y-z)²=x²+y²+z²-2xy-2xz+2yz

=(x)²+(2y)²+(3z)²-2*x*2y-2*x*3z+2*2y*3z

=x²+4y²+9z²-4xy-6xz+12yz

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