Question

How do I evaluate the expression for x= - 1 and x=2 ?

Answer 1

We are given the following expression:

-2|x-3|

To evaluate it at x = -1, we replace x by -1. So

-2|-1 -3| = -2|-4| = -2*4 = -8

To evaluate it at x = 2, we replace x by 2. So

-2|2 - 3| = -2|-1| = -2*1 = -2