Hello Everyone,
I have a very embarrassing question. I'm studying the introduction chapter in my Calculus book.
I have the following problem:
The answer in my book:
My answer doesn't match and I can't really figure out why:
Split points: -2, 1, 3
There must be four intervals to test
So I use the following test points to determine when the inequality is greater than 0: -3, 0, 2, 4
x= -3 [-] Doesn't Work
x = 0 [+] Does Work
x = 2 [-] Doesn't Work
x = 4 [+] Does Work
So according to me and this work I did the solution should be