Question

write in expanded from [9x-y+1/3z]^2​

Answer 1

Answer:

Step-by-step explanation:

[9x-y+1/3z]² = [27x-3y+z]²

                     = [27x-3y+z]×[27x-3y+z]

                     = 729x²-81xy+27xz-81xy+9y²-3yz+27xz-3yz+z²

                     = 729x²+9y²+z²-162xy+54xz-6yz

Hope it helps

Answer 2

Answer:

This is the correct answer.