Question

please solve this problem s​

Answer 1

Q2- 3

PLEASE MARK IT AS BRAINLISTS

Answer 2

A3)-
(x-2y+3z)*
(x-2y+3z) = x*x=x^2
-2y*-2y= +4y^2
+3z*+3z=+9z^2
FINAL ANSWER :: x^2+4y^2+9z^2