Question

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

Answer 1

= - 7+z

Explanation:

Answer 2

Explanation:

x^3-2y^2-3x^3+z^4

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

=27-50-81+81

=-23