Question

Evaluate the following for a= -2 and c = 4 and please show your steps along the way. Only a correct answer with steps shown will receive full credit. 3a2−4c2a

Answer 1

3(-2)*2-4(4)*2(-2)
=(-12)-(-64)
=52

Answer 2

3(-2)2-4(4)2(-2)=
-6(2)-16(-4)=
-12+64=
52