Question

(x+2y+4z)²??????????????​

Answer 1

Question:

(x+2y+4z)²

Answer:

We need to expand (x+2y+4z) ²

We know appropriate identity (x+y+z) ²

We know appropriate identity (x+y+z) ² =x ² +y ² +z ²+2xy+2yz+2xz

Therefore, the value of (x+2y+4z) ² is=x ² +(2y) ² +(4z) ²+2(x)(2y)+2(2y)(4z)+2(x)(4z)

=x ² +4y ²+16z ² +4xy+16yz+8xz

$hope \: it \: is \: helpful \: to \: you$

Answer 2

Answer:

(x+2y+4z)²=(x+2y+4z)(x+2y+4z)

x²+2xy+4xz+2xy+4y²+8yz+4xz+8yz+16z²

x²+4xy+8xz+4y²+16yz+16z²

x²+4y²+16z²+4xy+8xz+16yz