Question

if x=1,y=4,z=2 then what will be the value of x3+y2+z2-2xyz

Answer 1

1+16+4-16
=(5)

hope it helps

Answer 2

$x {}^{3} + y {}^{2} + {z}^{2} - 2xyz \\ 1 + 16 + 4 - 16 \\ 5$
5 will be the answer