Question

Evaluate the following expreesion useint the values given using 2x^2-2z^4 if x=-4 y=3 and z=2

Answer 1

-192

Explanation:

2(-4)^2 - 2(2)^4

-8^2 - 4^4

64 - 256

-192

But I put it through google calculator as a whole and it said the answer was zero so this may be wrong.