AP Calculus

[Master_of_the_Faster]

I remembered one of the problems from my first unit test in calculus and would like to share it with you guys. It basically went like this: use the sandwich theorem to find the limit of
5-(x^2)(sin(1/x)). I know that there are two functions that surround this function when dealing with the sandwich theorem and that in an example, I saw that the function was basically sandwiched between -x^2 and x^2. Does anyone know which functions
5-(x^2)(sin(1/x)) is sandwiched between and why?

Edit: Sorry that I didn't mention that this is high school math (well both semesters of calculus in college, but taught in high school) in the title of the thread.