Question

Find the product of (〖xyz)〗^2and (XY-yz+zx).

Answer 1

Answer:

Step-by-step explanation:

Squaring both sides

(x+y+z) 2

=x2 +y2 +z2 +2(xy+yz+zx)

we can substitute given values

(x+y+z) 2=18+(2×9)

(x+y+z)2 =36

(x+y+z)=6