Question

Evaluate the following expression using the values given.

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

Numerical Answers Expected!

Answer 1

2(-4)^2 -2(2)^4+3^2-(-4)^2+(2)^4
-32-32+9-16+16
-32-32=-64

Answer 2

Find 2r2 + 3s3 - r2 + 4t2 - r2 if r = -2, s = -3, and t = 5.

Answer 3

substitue the values