Question

Evaluate the following expression using the values given.

Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2. (1 point)

Answer 1

2X2-2z4+y2-x2+z4
4-2X2X4+3X2-(-4)2+2(4)
4-2X2X4+3X2-(-8)+2(4)
4-2X2X4+3X2+8+8
4-2X2X4+6+16
4-16+6+16
4+6-16+16
=10