The expression 2x - (xy + 1)² – 2 evaluated for the values of the variables is -13
How to evaluate the expression for the values of the variables
From the question, we have the following parameters that can be used in our computation:
x = -1, y = 4 and z = -2.
Also, we have
2x - (xy + 1)² – 2
Substitute the known values into the equation
2x - (xy + 1)² – 2 = 2 * -1 - (-1 * 4 + 1)² – 2
Evaluate
2x - (xy + 1)² – 2 = -13
Hence, the expression evaluated for the values of the variables is -13