Question

(3x-2y+z)2-(3x+2y-z)2​

Answer 1

Answer:

We would apply the identity :

(a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca

So your answer would be ,

9x^2+4y^2+z^2+12xy-4yz-6za