Question

Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.

Answer 1

Okay. See the x, y, and z values? Plug them in for the variables in the equation

Answer 2

ok

Answer 3

Let's start with the 2x2. x = -4
Therefore, we insert -4 for the value of x
2*-4*2=-16

Answer 4

Now, the equation is (-16) - 2z4 + y2 + z4

Answer 5

ok

Answer 6

Let's do it for the next part, 2z4

z=2
2*2*4=16

Answer 7

ok I get it

Answer 8

Now it is (-16) - 16 + 2y - x2 +z4

Good luck figuring it out :)
I can check your answer if you want :D