Question

(x+y+z)2=?

(a) x2+y2+z2+xy+yz+zx (b) x2+y2+z2+2xy+2yz+2zx

(c) x3+y3+z3+xy+yz+zx (d) None of these​

Answer 1

Answer:

I think none of these....

Answer 2

Answer:

option b is correct answer

Step-by-step explanation:

(x+y+z)^2= x^2 + y^2 + z^2+2xy +2yz + 2zx