Question

Evaluate the following expression for x = 1 and y = -3.
3yºx+x-y

Answer 1

8

Explanation:

yº (in words, 'y to the power zero') is simply 1. We then have

3yºx+x-y = 3(1) + 2x - y = 3 + 2x - y.

Substituting 1 for x and -3 for y, we get the expression value:

3 + 2 - (-3) = 8