okay ....... i'm going to ur other question
I'm pretty sure it's -4x.
Answer:
The result of the integral is 
Step-by-step explanation:
We are given the following integral:

I am going to solve by substitution, using
, so
. So, we have

Which has the following result:

Going back to x, the result of the integral is

Answer:
Step-by-step explanation:
Andrew made a mistake at last step.
<u>It should be:</u>
- -11.8 + 9.8 = 9.8 - 11.8 = -2 but not -21.6