Evaluate the expression below when x = - 2.

x2 - 8

x + 6

First, substitute - 2 into each equation where there is an x:

(-2) 2 - 8

(-2) + 6

Then multiply the - 2 and the 2 in the first equation and add - 2 and 6 in the second:

-4 - 8

4

Lastly, subtract - 4 and 8:

-12

4

Now you have you answers - 12 and 4!