Question

if m=1 n=-1 p=2,then find the value of m2 n2+n2p2+p2 m2

Answer 1

=(1)2 (-1)2+-(1)2(2)2+(2)2(1)2
=1+1-4+4
=2-0
=0

Answer 2

1
$2 \times 1 + (- 1 \times 2)2 \times 2 + 2 \times 2 \times 2 \times 1 =$