posted by Josh on .
solve the following inequality. write your solution in interval notation.
x^3+9x^2-108 less than or equal to 0
please show all work
Get you started you have to start by guessing
Then do long division
Answer will be x^2+12x+36
3and -6 are your critical values
Now you have to test the different regions
how do I test the different regions??
Just pick a number in the region
Plug back into the function
Neg ans means less than 0
Pos ans means greater than 0