Question

expand (3x-2y+z)^2 using suitable identities​

Answer 1

Answer:

9x^2−12xy+6xz+4y^2−4yz+z^2

Step-by-step explanation:

(3x−2y+z)^2

=(3x+−2y+z)(3x+−2y+z)

=(3x)(3x)+(3x)(−2y)+(3x)(z)+(−2y)(3x)+(−2y)(−2y)+(−2y)(z)+(z)(3x)+(z)(−2y)+(z)(z)

=9x^2−6xy+3xz−6xy+4y^2−2yz+3xz−2yz+z^2

=9x^2−12xy+6xz+4y^2−4yz+z^2

Answer 2

Answer:

here is ur answer!

Step-by-step explanation:

plz look at above pic.

hope this will helps u.....