SOLUTION:

Algebra.Com
Question 88116:
Found 2 solutions by Flake, malakumar_kos@yahoo.com:
Answer by Flake(45)   (Show Source): You can put this solution on YOUR website!
Yes, basically you substitude x = -3 then -2
Answer by malakumar_kos@yahoo.com(315)   (Show Source): You can put this solution on YOUR website!

When you have a problem like below how do you solve it? Do you have to solve twice so that you use x both times?
Find the values of the following expression if x = - 3 and -2
-x^2-5x-6
We have to solve it twice taking the values of x as -3 &-2
1) First taking the value of x = -3 we get -x^2-5x-6 = -(-3)^2-5(-3)-6
= -(+9)+15-6
=-9-6+15
= -15+15
= 0
2)taking the value of x=-2 we get -x^2-5x-6 = -(-2)^2-5(-2)-6
=-(4)+10-6
= -4-6+10
= 0