Question

( x+2y-3z)²
step by step plz​

Answer 1

Answer:

I think the answer is a bit of a thousand miles away from the wire

Answer 2

formula: (a+b+c)²=a²+b²+c²+2ab+2bc+2ca

in this case,

a=x

b=2y

c=-3z

(x+2y-3z)²

(x)²+(2y)²+(-3z)²+(2*x*2y)+(2*2y*-3z)+(2*-3z*x)  (from the formula given above)

x²+4y²+9z²+4xy-12yz+6xz