Question

Expand using identity (3x – 2y + z) power 2​

Answer 1

Answer:

let x be 3x y be -2y and c be x

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

just put values

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

$9x {}^{2} +4y{}^{2} + z {}^{2} -12xy - 4yz + 6xz$

hope it helps you

Answer 2

hope it will help you

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