Question

Find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3

Answer 1

The answer is -49
First you plug in your numbers following the letter
After plugging it in you get the equation
3•3-(2•5•2)-(3•3•3)+-3•4
Simplified as
9-20-27-12
After doing this you get -49

Answer 2

3(3)-2(5)2-3(3)3+(-3)4=

9-20-27+-12

-50

I think I solved the problem correctly.