Question

Evaluate after simplifying it: 4abc ( a2 + b2 + c2 ) for a = 1, b = -1, c = 2​

Answer 1

Answer:

4abc(a2+2+c2)

4(1)(-1)(2)((1)2 +(-1)2 +(2)2)

4-4+4*2+-2+4

8+-2+4

6+4

=10