Question

if a is 2
b is -2
c is 1
then a2b + b2c + c2a

Answer 1

2×-2×2+-2×2×1+1×2×2
-6-4+4
-6

Answer 2

$\huge\red{Answer\: is}$

$(2) {}^{2} \times ( - 2) + ( - 2) {}^{2} \times 1 + 1 {}^{2} \times 2 \\ = - 8 + 4 + 2 \\ = - 8 + 6 \\ = - 2$
Hope it helps you