Question

(x+2y-4z)^2
Expand each of the following using suitable identities.

Answer 1

Answer:

(a+b+c)2=A2+b2+C2+2ab+2bc+2ac

Answer 2

Answer:

x^2+4y^2+16z^2+4xy-8xz-16yz

Step-by-step explanation:

The formula for (a+b+c)^2 is a^2+b^2+c^2+2ab+2bc+2ca