Question

expand using suitable identity (3x – 2y+z)^2

Answer 1

Step-by-step explanation:

2 2 2

= X + 4 Y + 16 Z + 4 X Y + 16 Z + 18 X Z

Answer 2

Answer:

(3x-2y+z)²

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

= 9x²+4y²+z²-12xy-4yz+6xz

By using the identity,

(a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ac.