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

-192

Step-by-step 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.